This crossword No. 12106 clues and answers were published on Thu 26 Feb 2009 and the puzzle can be visited by following The Guardian Quick Crossword No. 12106 link.
All Across Clues and Answers:
1-across – Perambulate : WALK
3-across – Occasionally : OFFANDON
8-across – Device providing illumination : LAMP
9-across – Kept woman : MISTRESS
11-across – Depending : CONTINGENT
14-across – Long narrow crests : RIDGES
15-across – Derisive exclamation : YAHBOO
17-across – Icicle-like accumulation of mineral deposits : STALACTITE
20-across – Estrange : ALIENATE
21-across – Desire — deficiency : WANT
22-across – Irritation caused by pollen : HAYFEVER
23-across – Dread : FEAR
All Down Clues and Answers:
1-down – Unqualified competitor given discretionary entry : WILDCARD
2-down – Soft drink made with citrus fruit juice : LEMONADE
4-down – Tasselled edging : FRINGE
5-down – Gate — enact Dante : ATTENDANCE
6-down – Far down : DEEP
7-down – Proboscis : NOSE
10-down – Superficial dabbler in the arts — title at end : DILETTANTE
12-down – Formally renounce throne, power etc : ABDICATE
13-down – Polaris : POLESTAR
16-down – Provide with garments : CLOTHE
18-down – Whip : LASH
19-down – Very small : TINY
This crossword has in total 24 where 12 are across and 12 are down.