[Solution (click to open)]
With silver bells and cockle shells
And pretty maids all in a row."
8 Artful folding of paper giro returned by French pal. (7)
ORIGAMI. GIRO [returned] -> ORIG AMI (French pal).
9 Broadcast Nora and I are transmitting now. (2,3)
ON AIR. (Nora I)* [broadcast].
10 Stomach of ancient Egyptian body loses mass after time. (5)
TUMMY. T (time)
11 Starts to hanker over life in Dales after Yorkshire vacation. (7)
HOLIDAY. Initial letters of [starts to] Hanker Over Life In Dales After Yorkshire.
12 How 18 Oxford and Cambridge blues on the Thames are properly aligned.... (3,2,1,3)
ALL IN A ROW. Cryptic definition relating to the Boat Race.
14 ...and not ultimately from Eton to Windsor. (3)
NOR. Last letters of [ultimately] EtoN tO WindsoR.
16 I agree that's some eyesore. (3)
YES. Hidden in [some] eYESore.
18 Purses lips when little dog consumes last five of Snickers and last of tiramisu. (7,2)
PUCKERS UP. PUP (little dog) outside [consumes] [last five of] SniCKERS [last of] tiramisU.
21 I doubt small mushroom leads to nervous twitch. (7)
SCEPTIC. S (cmall) CEP (mushroom) TIC (nervous witch). "leads to" here is a positional indicator not signifier of inital letters.
22 Greek anatomist is partly dissecting a lens. (5)
GALEN. Hidden in dissectinG A LENs.
23 Pretty maids, we hear, are rung by campanologists. (5)
BELLS. Sounds like [we hear] BELLES (pretty maids).
24 Searchers find king and queen hiding in toilets. (7)
LOOKERS. K (king) ER (queen) [hiding in] LOOS (toilets).
1 Tory creative work set up by railway. That's perverse. (8)
CONTRARY. CON (Tory) ART (creative work) [set up] -> TRA, RY (railway).
2 Lads, I'm awfully gloomy. (6)
DISMAL. (Lads I'm)* [awfully].
3 Scottish Queen was horsey we're told. (4)
MARY. Sounds like [we're told] MARE-Y (horsey). Did that make you groan?
4 Shrivel up due to lack of water and squirm in agony right to the end. (6)
WITHER. Take WRITHE (squirm in agony) and move the R (right) [to the end].
5 Leader's instruction to support Middle East. (6,2)
FOLLOW ME. FOLLOW (support, as in a football team) M.E. (Middle East)
6 Pike-like fish has lair where plants grow. (6)
GARDEN. GAR (pike-like fish) DEN (lair).
7 Type of stinging ant that disturbs our landscape designer, 3D's namesake. (4)
ARMY. [disturbs] (Mary)* (our gardener).
13 Most pine unreasonably for favourable treatment. (8)
NEPOTISM. (Most pine)* [unreasonably].
15 Gardener's readiness to initially register intellectual property makes sense. (8)
RIPENESS. [initially] Register IP (intellectual property) [makes] (sense)*.
17 Attacks with artillery to create inferno on board ship. (6)
SHELLS. HELL (inferno) inside [on board] SS (ship).
19 Tap the french mollusc. (6)
COCKLE. COCK (tap) LE (the in french).
20 Second change for Long John. (6)
SILVER. Triple definition.
21 Boss sadly cries. (4)
SOBS. (Boss)* [sadly].
22 Develop good argument. (4)
GROW. G (good) ROW (argument).