This crossword No. 21715 clues and answers were published on Wed 13 Oct 1999 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 21715 link.
All Across Clues and Answers:
1-across – The adding of water etc in the matter of established political norms : RECONSTITUTION
9-across – There’s a boom when it reads 1, caused by hammer etc : MACHMETER
10-across – Uniform choice, as in 1900 or with the Falklands factor : KHAKI
11-across – Imperial cat? : OUNCE
12-across – Near Eastern front, money held by Southern general : LEVANTINE
13-across – Most of our air needs re-toning : NITROGEN
14-across – Bit of trouser for the book? : TURNUP
17-across – Parasite having a rest at the table : JIGGER
19-across – See 10 : ELECTION
22-across – Predicament after strike dispels darkness : LAMPLIGHT
24-across – Legal bar to poet’s work : ESTOP
25-across – Run away, as insect from ungulate : ELOPE
26-across – Work hard to enter Magic Circle before eating raw flesh : OMOPHAGIC
27-across – Rates flop badly at 1 down’s county: it requires the adding of water : PLASTEROFPARIS
All Down Clues and Answers:
1-down – Lovers’ memory of dawn before a month in parliament : ROMEOANDJULIET
2-down – It’s giving milk that has people shy : COCONUT
3-down – Nobody keeps pigment for himself : NUMBERONE
4-down – Written off to journalist of stature : TOTALLED
5-down – In the earth rivers enable us to live well : THRIVE
6-down – Symbolic presence granted to Livingstone : TOKEN
7-down – Eggs changed into what could be standing : OVATION
8-down – Deserts etc produce woes with appendices burst : WIDEOPENSPACES
15-down – He’s turning in: take away keeper with relative status : UNCLESHIP
16-down – Trouble about gambling game – it isn’t over yet! : ALOTTODO
18-down – Soup I left, having trouble in the mouth : GUMBOIL
20-down – 3 is 3, say, in between : INTEGER
21-down – Take no notice of Italian men losing their head : IGNORE
23-down – City is 3, say : LEEDS
This crossword has in total 28 where 14 are across and 14 are down.