Across
After mistake on circuit, pressure for F1 starter (6)
Meat from sheep I finished first (8)
Indigo for a chess computer (4,4)
Rural cottage is this writer's bolthole? (6)
Care to relax, after putting energy into a comic song (7,5)
I haven't cracked this one yet — but Fifteensquared have:
anagram/”to relax” of (Care)*, after ZING=”energy” in A MAG[azine]=”a comic”
For her, partner (not male) not available (4)
I haven't cracked this one yet — but Fifteensquared have:
m-AN=”partner” [for her], minus ‘m’ for “male”, plus N/A=”not available”
Upset voter stumbles against ballot box (8)
I haven't cracked this one yet — but Fifteensquared have:
anagram/”stumbles” of (voter)* + URN=”ballot box”
Reduce studies in first chapter? (8)
I haven't cracked this one yet — but Fifteensquared have:
DENS=”studies” [as in rooms], inside C ONE=Chapter One=”first chapter”
One goes round castle, treading nothing into carpet (4)
I haven't cracked this one yet — but Fifteensquared have:
O=”nothing” inside MAT=”carpet”
What did you say, you tosser? (5,2,5)
Tore off from opera, back at top speed to dance (6)
I haven't cracked this one yet — but Fifteensquared have:
[IL] TROVA-tore=Verdi “opera”, minus the ‘tore’ and reversed/”back”, after C=speed of light=”top speed”
Partnership lacking say in loyalty (8)
Without imagination, supermarket replaces legend's recipe (8)
I haven't cracked this one yet — but Fifteensquared have:
LIDL=”supermarket”, replacing ‘r’ (recipe) in STO-r-Y=”legend”
Deer turns over something with one foot (6)
I haven't cracked this one yet — but Fifteensquared have:
WAPITI is a name for elk reversal/”turns over” of IT=”something” + I=”one” + PAW=”foot”
Down
In the country I am an unknown animal (4)
I haven't cracked this one yet — but Fifteensquared have:
I BE=”I am”, “In the country” e.g. as said by someone in the West Country, plus X=”unknown” in maths
Random bloke caught out over pitfall (9)
Send fruitlessly from here to post in this box (6)
I haven't cracked this one yet — but Fifteensquared have:
reference to the phrase ‘from pillar to post’ to describe moving back and forth aimlessly
Appoint entirely unsatisfactory diplomat (15)
Glittering, like part of American flag (8)
I haven't cracked this one yet — but Fifteensquared have:
the American flag is known as the Star SPANGLED Banner
Trainspotter losing head — it's like a sieve (5)
I haven't cracked this one yet — but Fifteensquared have:
definition: a device used to e.g. press potatoes through holes to make mash G-RICER is slang for a “Trainspotter”, minus the head letter
Went to see a fellow motoring enthusiast to give a bit of a hand (10)
I haven't cracked this one yet — but Fifteensquared have:
MET A CAR PAL=”Went to see a fellow motoring enthusiast”
Bigoted, enjoying the bilingual harangue (10)
I mark the moment the paper is on the carpet — picked up quietly (4-5)
I haven't cracked this one yet — but Fifteensquared have:
TIMES=”[news]paper” + MAT=”carpet” reversed vertically/”picked up” + P (piano, “quietly”) a second use of MAT=”carpet”
Rare single: not running in between (8)
I haven't cracked this one yet — but Fifteensquared have:
UNWED=”single”, with anagram/”running” of (not)* inside
Bat showing determination on old wicket (6)
Be out of sleeping bag? That's odd (5)
I haven't cracked this one yet — but Fifteensquared have:
Be-DROLL=”sleeping bag”, minus the “Be”
Small incision in tail (4)
I haven't cracked this one yet — but Fifteensquared have:
definition: a short tail of e.g. a rabbit or deer S (small) + CUT=”incision”
Type letters or click words in the clue