This crossword No. 636 clues and answers were published on Sun 25 Nov 2007 and the puzzle can be visited by following The Guardian Speedy Crossword No. 636 link.
All Across Clues and Answers:
1-across – Commit to memory : LEARNBYROTE
9-across – Fruit drink : ORANGEADE
10-across – Unwell : ILL
11-across – Scale replica : MODEL
13-across – Funny, laughable : COMEDIC
14-across – Innate quality : NATURE
15-across – Stableman : OSTLER
18-across – Rower : OARSMAN
20-across – Subject of discussion : TOPIC
21-across – Signal, hint : CUE
22-across – Find fault : CRITICISE
24-across – Device powered by water vapour : STEAMENGINE
All Down Clues and Answers:
2-down – Age, epoch : ERA
3-down – Uniform : REGULAR
4-down – Offshoot, subsidiary part : BRANCH
5-down – Catarrh : RHEUM
6-down – Catching position in cricket : THIRDSLIP
7-down – Facility to get on with social inferiors? : COMMONTOUCH
8-down – Shocking fish : ELECTRICEEL
12-down – Discouragement, disincentive : DETERRENT
16-down – Background : SETTING
17-down – Whole : ENTIRE
19-down – Place of pilgrimage : MECCA
23-down – Electrically charged atom : ION
This crossword has in total 24 where 12 are across and 12 are down.