This crossword No. 11730 clues and answers were published on Tue 11 Dec 2007 and the puzzle can be visited by following The Guardian Quick Crossword No. 11730 link.
All Across Clues and Answers:
1-across – Sage : WISE
3-across – Modified to be more powerful : SOUPEDUP
8-across – Still – divisible by two : EVEN
9-across – Relating to office work : CLERICAL
11-across – Cheap ornament : KNICKKNACK
14-across – Responsible for misdeed : GUILTY
15-across – Person lacking natural pigmentation : ALBINO
17-across – Impudence : CHEEKINESS
20-across – Unopposed victory : WALKOVER
21-across – Rip : TEAR
22-across – Shiner : BLACKEYE
23-across – Incite : URGE
All Down Clues and Answers:
1-down – Remnants of destruction : WRECKAGE
2-down – Precise : SPECIFIC
4-down – Connected to central computer system : ONLINE
5-down – Raisable grating across castle gateway : PORTCULLIS
6-down – Pack – floor in boat : DECK
7-down – Part of hand : PALM
10-down – Pad for artist’s preparatory work : SKETCHBOOK
12-down – Member of House of Lords whose title is not hereditary : LIFEPEER
13-down – Save : CONSERVE
16-down – Salad vegetable : CELERY
18-down – Small pad for surgical use : SWAB
19-down – Earnest request : PLEA
This crossword has in total 24 where 12 are across and 12 are down.