Across
Undercover, American seen on rugby pitch twice? (4-4)
I haven't cracked this one yet — but Fifteensquared have:
It’s a long time since I’ve seen this device – but I like it: US (American) seen between H H (rugby posts) twice
Protection for art students in the first instance sitting practice exams (6)
Star knocked back nearly a half of Benedictine (5)
Regrettably icy moment, representative of the bigger picture (9)
Stopped by Port of London Authority, bill recalled for our neighbour (3,6)
I haven't cracked this one yet — but Fifteensquared have:
A reversal (recalled) of TENDER (bill?) round PLA (Port of London Authority)
Reportedly change train’s destination? (5)
Provide food including – finally! – sugar bowl (6)
I haven't cracked this one yet — but Fifteensquared have:
CATER (provide food) round [suga]R – a neat ‘lift and separate’
Picture puzzles – about 16 and more? (7)
Almost hassle-free, they’re used with mortars (7)
Appropriate drinks passed around local characters (6)
Some are Olympian, running these round their rivals? (5)
Star has been here – problem for Starmer’s lot? (5,4)
Uninjured? Surprisingly alive, having got on it (9)
Gold piece: ring (5)
Old flame damaged tree somewhere in Devon (6)
Laureate composed sonnet about New York (8)
Down
Ivy can be found in impoverished eras (6)
They fly nighttime weapon aboard planes (4-5)
Work close up with the Beeb to install lake observatory (6,9)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (work) of CLOSE UP + THE BEEB round L (lake)
Group of undergrads mostly smearing bananas (7)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (bananas) of SMEARIN[g]
What may make you lament? (6,9)
I haven't cracked this one yet — but Fifteensquared have:
A reverse anagram (breakdown) of MENTAL
Ludwig in bed, a heavenly body?! (5)
Safest for armistices, on reflection, to include El Salvador (8)
I haven't cracked this one yet — but Fifteensquared have:
A reversal (on reflection) of TRUCES (armistices) round ES (El Salvador)
I announce small potato (6)
What may be booked for field trip? Inappropriately, Soho clubs (6,3)
Loosened rivets on wall of toilet facility, being playful (8)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (loosened) of RIVETS round ‘wall’ of P[ortalo]O (toilet facility)
Spelling bee? (6)
Made tipsy upon entering wicked world of scholarship (7)
Genius running after salamander (6)
Stars suddenly brighter and twinkly on average, before storm (5)
Type letters or click words in the clue