Across
Just a quarter of this state would be fine (8)
I haven't cracked this one yet — but Fifteensquared have:
A quarter of OKlahoma is OK, or “fine”
Ranges of jewellery items (6)
He provided waltzes as Truss danced (7)
Briskly cheerful person preparing potatoes? (7)
So shy after being bitten? (5)
I haven't cracked this one yet — but Fifteensquared have:
A reference to the proverb “once bitten, twice shy”
Roman soldier expecting congratulatory telegram? (9)
I haven't cracked this one yet — but Fifteensquared have:
A reference to the telegram (now a card) sent from the monarch to a person on their hundredth birthday. A centurion can be “a person who has scored or achieved a hundred in anyway”, as well as the Roman soldier
Arrested advocate for peace getting the bird (8,4)
What you don’t see when driving is crazy (5,3,4)
Prudish stars get together for elections (9)
A traveller’s distinctive fragrance (5)
Outrageously wicked criminal in house (7)
After a few weeks, work for an army type? (7)
Youthful follower of steam engines (6)
In credit, comfort is to grow (8)
Down
Note is circulated at the workplace (2-4)
I haven't cracked this one yet — but Fifteensquared have:
NOTE IS
One high-flying fashionable poet (6)
Family should hope to move without pressure (9)
I haven't cracked this one yet — but Fifteensquared have:
Anagram of SHOULD HOPE less P[ressure]
Party game for conservatoire professors? (7,6)
I haven't cracked this one yet — but Fifteensquared have:
A chair is a professorship, so those at a conservatoire would be of the musical variety
Japanese work hard, assiduous in keeping up with the leaders (5)
I haven't cracked this one yet — but Fifteensquared have:
First letters of Hard Assiduous In Keeping Up
Lock away troublemaker, absolutely not set up (8)
I haven't cracked this one yet — but Fifteensquared have:
IMP (troublemaker) + reverse of NO SIR (absolutely not)
Fast mover, first in shop to collect computer equipment (8)
I haven't cracked this one yet — but Fifteensquared have:
S[hop] + PRINTER
Soon abort scan, having broken instrument (13)
Not scared to relocate here? (9)
One dies in court, making a point (4,4)
Hearing test (8)
Band, note, played at funfair (6)
Scots girl has energy after cold drink (6)
I haven't cracked this one yet — but Fifteensquared have:
LASSI (Indian cold drink) + E[nergy]
A mortgage said to be unique (5)
Type letters or click words in the clue