This crossword No. 9509 clues and answers were published on Mon 23 Oct 2000 and the puzzle can be visited by following The Guardian Quick Crossword No. 9509 link.
All Across Clues and Answers:
1-across – One using many cigarettes : HEAVYSMOKER
9-across – Relieved of anxiety : REASSURED
10-across – Head of corn : EAR
11-across – Female relative : NIECE
13-across – Person of extremely strict morals : PURITAN
14-across – Except if : UNLESS
15-across – Dreary : GLOOMY
18-across – Ungrateful person : INGRATE
20-across – Boiling water vapour : STEAM
21-across – Rug : MAT
22-across – Antiperspirant : DEODORANT
24-across – Fertile – courageous : INGOODHEART
All Down Clues and Answers:
2-down – Memorable period : ERA
3-down – Evensong : VESPERS
4-down – Abrade : SCRAPE
5-down – Apply for – class : ORDER
6-down – Conductor by which current enters : ELECTRODE
7-down – High-performance luxury sports car : GRANTURISMO
8-down – Hard, green-skinned apple : GRANNYSMITH
12-down – Inform : ENLIGHTEN
16-down – Supple : LISSOME
17-down – Register – best listed achievement : RECORD
19-down – Relating to sound : AUDIO
23-down – Tune – atmosphere : AIR
This crossword has in total 24 where 12 are across and 12 are down.