This crossword No. 21739 clues and answers were published on Wed 10 Nov 1999 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 21739 link.
All Across Clues and Answers:
9-across – A high mark, with luck and a half, within range : ALPHAPLUS
10-across – See 16 : LEACH
11-across – 21, the writer, an unconventional farceur? : BEATRIX
12-across – Altitude with no time before morning attained after 21 in Norfolk : HEIGHAM
13-across – Bear accepting stakes : TOTE
14-across – The tyranny of the subconscious? : REPRESSION
16-across – 21 hesitatingly put aromatic oil in disinfectant : BERNARD
17-across – 21, good at games, suggests bird’s-foot : STEPHEN
19-across – Finishes beheaded, not carried over : ENDSTOPPED
22-across – Norfolk water used to be the start of 12 : WASH
24-across – The Little Prince, a title with fire in it : KINGLET
25-across – Reversing loco around this place in Norfolk : DEREHAM
26-across – Scottish town, the Irish being held by Granny : NAIRN
27-across – Brian Close, damaged with loss of student, needs a lawyer : ESCRIBANO
All Down Clues and Answers:
1-down – With entry of b-big 22, a sword and a ruler will not be kosher : SABBATHBREAKING
2-down – Southern dish to make a mess on the wall, perhaps : SPLATTER
3-down – 21, the young wizard – don’t leave him in peace : HARRY
4-down – To eat without slack’s to make cake without oil : FLAXSEED
5-down – 3’s funny girl in the Bible : ESTHER
6-down – Prairie-dwellers devise a scheme about reconstructed mines : PLAINSMEN
7-down – Commercial television is upset about a tree supplanted by 3 : VASHTI
8-down – Would-be traveller to Norfolk finds those folk a fraction : THEMANINTHEMOON
15-down – Common phones for loyalists on their toes? : PARTYLINE
17-down – Bird in detention put in to copy a mammal? : SHELDUCK
18-down – Agreement with both ears? : HEARHEAR
20-down – 21, the dramatist, did the wrong thing the wrong way : DENNIS
21-down – Dawdle like a nerd after 23s : POTTER
23-down – Educate followers on-line : TRAIN
This crossword has in total 28 where 14 are across and 14 are down.