This crossword No. 21820 clues and answers were published on Mon 14 Feb 2000 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 21820 link.
All Across Clues and Answers:
9-across – The only one in a suit wearing a vest : SINGLETON
10-across – Mature, or mature to a point : RIPEN
11-across – A new role in flight control : AILERON
12-across – Shattered hope and returning trouble robbed her of the will to live : OPHELIA
13-across – A piece of cake for a midshipman : EASY
14-across – Open and confined spaces for relaxation in school : COMMONROOM
16-across – Fall of rotter in lawsuit : CASCADE
17-across – It may identify the member leading the orchestra : ARMBAND
19-across – Soldiers in irregular wars need someone to provide intelligence : NEWSREADER
22-across – How about a call to slow down? : WHOA
24-across – Airs composed by priest in Hebrew : ISRAELI
25-across – Become weak, get nurse round for the final stage : TAILEND
26-across – Roots develop into a trunk : TORSO
27-across – Soup ingredient often includes eggs : BIRDSNEST
All Down Clues and Answers:
1-down – Those who should be inside out : ESCAPEDCONVICTS
2-down – They should be able to identify any salts in a mixture : ANALYSIS
3-down – Highlight of 70s’ fashion trousers? : FLARE
4-down – Phaeton’s rebuilt as a carriage for one : STANHOPE
5-down – Where teachers teach? : INFORM
6-down – Many cheer the reformation of Satan : ARCHENEMY
7-down – Sun-god took men to the moon : APOLLO
8-down – Barmaids need not give change for these machines : ONEARMEDBANDITS
15-down – Girl and boy flirted : CARRIEDON
17-down – Opening for a photographer : APERTURE
18-down – Runners allowed to enter various heats : ATHLETES
20-down – Call for action put out by the Salvation Army : WARCRY
21-down – A disposition of arms : AKIMBO
23-down – Climbing gear? : FIRST
This crossword has in total 28 where 14 are across and 14 are down.