Across
Sweet nothing in the sack (7)
Last worker, sweet (7)
Deer performs (4)
Article, so incomprehensible in parts (9)
Every other part of icky sweet (5)
I haven't cracked this one yet — but Fifteensquared have:
The alternate (every other) letters of icky are C AND Y
Gap in a lively river (8)
I haven't cracked this one yet — but Fifteensquared have:
A PERT (lively) + URE (my beloved Wensleydale river)
Down and dirty (4)
Kiwi's heading beyond valley — it can't take flight! (5)
I haven't cracked this one yet — but Fifteensquared have:
K[iwi] after DALE (valley) – please see comment 2 re the definition
Sweet stick gathering last of sherbet (4)
I haven't cracked this one yet — but Fifteensquared have:
CUE (stick) round [sherbe]T
Temporarily stop during school period, computer studies (8)
19d
Cube in sweet sweets (5,6)
As beer gut wobbles, something sweet in that (5,4)
Sleuth appearing sweet when spotted? (4)
I haven't cracked this one yet — but Fifteensquared have:
Reference to spotted dick, the pudding also known as spotted dog – see here – and dick is slang for a detective
Fudge is wrong after starter of dumplings (7)
I haven't cracked this one yet — but Fifteensquared have:
IS TORT (a civil wrong or wrongful act) after D[umplings]
Sweet, in the style of sweet wine (7)
I haven't cracked this one yet — but Fifteensquared have:
MARS (bar) (sweet) + À LA (in the style of)
Down
Sweet turning up a little more acidic (4)
Facial feature fed nougat initially, same part spitting out old humbug (8)
I haven't cracked this one yet — but Fifteensquared have:
NOSE (facial feature) round N[ougat] + N[o]SE again, minus o (old)
Top beef? (6)
Sweet kiss, warmer? (4,4)
Player is inspired by emotionless type, but no leader (6)
I say where there's water (4)
Sweet line in fresh torte after drink (9)
Place in Panama: (5)
Rubbish or Turner? (5)
Red Sea rising over a source of sweetness (8)
I haven't cracked this one yet — but Fifteensquared have:
A reversal (rising, in a down clue) of RARE (red, as in steak) + MED[iterranean] (sea) + A
Showboat cancelled, commercial remains (3,1,4)
See 20 across
Cosmic rays primarily penetrating new atlas (6)
I haven't cracked this one yet — but Fifteensquared have:
R[ays] in an anagram (new) of ATLAS – I’m not entirely convinced of the definition here
Executive clubs, for example (4)
Part of leg in small 3, say (4)
I haven't cracked this one yet — but Fifteensquared have:
Another double definition, 3dn being JERSEY
Type letters or click words in the clue