This crossword No. 21751 clues and answers were published on Wed 24 Nov 1999 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 21751 link.
All Across Clues and Answers:
1-across – Interest taken in making effortless profit? : UNEARNEDINCOME
9-across – First uses of wood – yew, cedar, hickory, elder, larch and maple tree : WYCHELM
10-across – Previous state of party, originally backed by old Soviet leader : PRUSSIA
11-across – Original plan to contain noisy type of lager lout going ahead : ROUGH
12-across – Italian dish gone, the table gossip becomes animated : SPAGHETTI
13-across – Trail, after getting behindhand, becoming less visible : LATESCENT
14-across – Congregated, introducing a northern painter : MANET
15-across – Coming from op, eyes appearing listless : MOPEY
17-across – Prince almost finished eating outrageous pudding : CHARLOTTE
20-across – See 12 : BOLOGNESE
22-across – See 11 : DRAFT
23-across – Greek character goes about a sexy dance : LAMBADA
24-across – Embarrassing situation about a league starting with unequal sides : SCALENE
25-across – One may be floored in EU HQ, facing reprimand : BRUSSELSCARPET
All Down Clues and Answers:
1-down – Going for success in first stage of lunar mission? : UPWARDLYMOBILE
2-down – Put hard surface on counters, with nothing going wrong : ENCRUST
3-down – Why risk getting tiddly, drinking the old booze… : RYEWHISKY
4-down – …with everyone involved speaking French? : ENMASSE
5-down – One may exaggerate boob for which surgeonÍs responsible : IMPLANT
6-down – Shopper pursuing express requirement for growth in some fields : COUCH
7-down – Sits worriedly among soldiers offering meal from this? : MESSTIN
8-down – Is he waiting for a bus to Clapham? : MANINTHESTREET
14-down – Play about indulging in OTT sentimentality : MELODRAMA
16-down – The first sign old circuitÍs cocked up in famous observatory : PALOMAR
17-down – Make a fuss about new type of leaf : CRENATE
18-down – When sister keeps record showing lack of infection? : ASEPSIS
19-down – Catch about restyling due to improve oneÍs property? : TRADEUP
21-down – See 6 : GRASS
This crossword has in total 28 where 14 are across and 14 are down.