This crossword No. 9222 clues and answers were published on Mon 22 Nov 1999 and the puzzle can be visited by following The Guardian Quick Crossword No. 9222 link.
All Across Clues and Answers:
1-across – Engaged in noisy merrymaking : MADEWHOOPEE
9-across – Detestable : ABHORRENT
10-across – Memorable period : ERA
11-across – Moral : ETHIC
13-across – Going beyond moderation : EXTREME
14-across – Blush : REDDEN
15-across – Densely populated slum area : GHETTO
18-across – Originate : EMANATE
20-across – Machine for bundling hay : BALER
21-across – Delve : DIG
22-across – Trifle : BAGATELLE
24-across – Ensured : MADECERTAIN
All Down Clues and Answers:
2-down – Result of burning – deciduous tree : ASH
3-down – Pain in the hearing organ : EARACHE
4-down – Respected : HEEDED
5-down – Group of eight : OCTET
6-down – Of the powers of nature : ELEMENTAL
7-down – Became pals : MADEFRIENDS
8-down – Bespoke : MADETOORDER
12-down – Shrubby plant with showy flowers : HYDRANGEA
16-down – Natural home : HABITAT
17-down – Small, sturdy breed of hound : BEAGLE
19-down – Stroll : AMBLE
23-down – Hawaiian garland : LEI
This crossword has in total 24 where 12 are across and 12 are down.