1-across – Tease in habitual action? Very sad : TRAGIC

4-across – Systems of measurement for plates : SCALES

10-across – Vegetable, bruised initially, absolute enthusiasts set aside : BUTTERNUTSQUASH

11-across – Roofless old enclosure, architect’s last work : OPENTOP

12-across – Weaving of mat seen to be most skilful : MEANEST

13-across – Shabby article about studied obstruction : THREADBARE

15-across – Eccentric hobby to some extent ridiculous : RICH

16-across – Run, fit and ecstatic : RAPT

17-across – Most unusual to store data in tropical environment : RAINFOREST

20-across – Be morose, keeping away after retirement in county : SUFFOLK

21-across – Robbed, cold and angry : CHEATED

23-across – Love song, terrible trial when gloomy : MYHEARTWILLGOON

24-across – Cool and objective in test : TRENDY

25-across – Sticky substance covering spot around mineral : GYPSUM

1-down – Prohibited cheers with expression of disapproval : TABOO

2-down – Mashed potato father had without hesitation : ATTHEDROPOFAHAT

3-down – Lack of movement, batting? Time to wrap it up : INERTIA

5-down – Odd members of clan that spoil a new boat : CATAMARAN

6-down – Fruit, large quota distributed : LOQUAT

7-down – Instructions for action in raid get muddled in parts : STAGEDIRECTIONS

8-down – Speak irritably in card game : SNAP

9-down – Problem in feline gossip : CHITCHAT

13-down – Tedious occasion? Half resolved to disrupt it : TIRESOME

14-down – Put together plot involving dishonest activity : BRACKETED

18-down – Covering part of disloyal revolution up : OVERLAY

19-down – Teacher put away present : DONATE

21-down – Extract fastener : CLIP

22-down – Study one beginning to mend fabric : DENIM

1-across – Perfect demon, last of cattle caught by rope : IMPECCABLE

6-across – Practise boxing in yard? : SPAR

10-across – Correct to skirt likely trap : CAPTURE

11-across – Heart? Inquiry’s opening with account relating to it : CARDIAC

12-across – Revolutionary flag millions value : MERIT

13-across – Outlaw group with odd bits of easy money : BANKNOTES

14-across – Typical routine by retired father, absorbed by map, in charge : CHARACTERISTIC

17-across – Prickly feeling almost excessive after pressure in desert? : PINSANDNEEDLES

21-across – Hesitant number, four, entering art institution : TENTATIVE

23-across – Half of test covering fringe subject : THEME

24-across – Evil one with constant appeal against the law : ILLICIT

25-across – Loving stir, mostly, seizing moment : AMOROUS

26-across – Ruler essential to work in geometry : KING

27-across – Power in tree men treated as supreme : PREEMINENT

1-down – Money earned from popular approach : INCOME

2-down – Annoyance about place in Australia being insubstantial : PAPERTHIN

3-down – Make up for hesitation in matter and rest : COUNTERBALANCE

4-down – Sharp and brilliant, playing crib : ACERBIC

5-down – Parasites formerly having no love for authority : LICENCE

7-down – Purpose in detail : POINT

8-down – Question scoundrel raised with crook, missing contents in bag : RUCKSACK

9-down – Take on fit rider trained to be jockey : FRANKIEDETTORI

15-down – Time and energy occupied by breed of cattle, endlessly so : THEREFORE

16-down – See potency in penalty : SPOTKICK

18-down – One with unsettled life blushing, upset about estrangement : DRIFTER

19-down – Raise tax in free-for-all, ignoring leader : ELEVATE

20-down – Accommodation with debt is complicated : BEDSIT

22-down – Only broadcast new material : NYLON

1-across – Cringe in Washington in connection with predicament : BOWANDSCRAPE

9-across – Take place in company going around with scoundrel : OCCUR

10-across – Garage designed to accommodate tank in compound : AGGRAVATE

11-across – Weak revolution ending in trouble to a smaller extent : SPINELESS

12-across – Avid solver omitting every other letter in passage : AISLE

13-across – Average temperature indicated : MEANT

15-across – Crime covered up by attendant in minister’s place : PARSONAGE

16-across – Freeze street in part of film about city : LEICESTER

17-across – Shine in field among leaders of great movement : GLEAM

19-across – Suppose visitors must be short of time : GUESS

20-across – Long distance from the rig, lay wrecked : LIGHTYEAR

23-across – Scent in tune with surrounding country : FRAGRANCE

24-across – Danger in place full of revolutionary anger : PERIL

25-across – Bug? It’s caught by poor player, we cry : CREEPYCRAWLY

1-down – Mature crowd upset about defeat : BLOSSOM

2-down – Song from enchantress, heartless with language, holding men up : WICHITALINEMAN

3-down – Audacity never out of order : NERVE

4-down – Post put at risk : STAKE

5-down – Keeper of records about substance, endlessly scarce : REGISTRAR

6-down – Pretend to co-operate in drama with arm initially extended : PLAYALONG

7-down – Be surprised by arena, I see, excited before fight : RAISEANEYEBROW

8-down – Part of treatise renegade composed : SERENE

14-down – Audit’s conclusion stern about certain person in charge of funds : TREASURER

15-down – Bad temper shown by alien in rising up with weapon : PETULANCE

16-down – Trademark? Very loud exit : LOGOFF

18-down – Doctor with demonstration in ethical style : MORALLY

21-down – E.g. key unusually handy with technology? : GEEKY

22-down – Become thinner in band on run : TAPER