This crossword No. 12641 clues and answers were published on Mon 15 Nov 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12641 link.
All Across Clues and Answers:
1-across – Concept challenging speciesism : ANIMALRIGHTS
9-across – Illumination : LIGHT
10-across – Badge on military headgear : COCKADE
11-across – ___, Brute! : ETTU
12-across – Type of textured wallpaper : WOODCHIP
14-across – Ornamental hanging tuft : TASSEL
15-across – All singing the same note : UNISON
18-across – City : COVENTRY
20-across – Not yet risen : ABED
22-across – Look critically at : INSPECT
23-across – Thrown : FLUNG
24-across – Removal of undesirable person : GOODRIDDANCE
All Down Clues and Answers:
2-down – Denies : NEGATES
3-down – Dumb : MUTE
4-down – Member of bodyguard for Roman magistrates : LICTOR
5-down – Happening : INCIDENT
6-down – Former prime minister : HEATH
7-down – Let them lie! : SLEEPINGDOGS
8-down – Intellectual woman : BLUESTOCKING
13-down – Caribou : REINDEER
16-down – Dull in colour : SUBFUSC
17-down – Nutmeg and cheese often are : GRATED
19-down – ____ da Gama : VASCO
21-down – Old English dyke builder : OFFA
This crossword has in total 24 where 12 are across and 12 are down.