This crossword No. 638 clues and answers were published on Sun 09 Dec 2007 and the puzzle can be visited by following The Guardian Speedy Crossword No. 638 link.
All Across Clues and Answers:
5-across – Imaginary place of sleep : LANDOFNOD
8-across – Homeless child : WAIF
9-across – Formal evening dress for men : BLACKTIE
10-across – Liable to sudden unpredictable change : FICKLE
11-across – Insignia : EMBLEM
13-across – One preparing 1 : TANNER
15-across – Pulse : LENTIL
16-across – Lasting for a brief time : FLEETING
18-across – Camera diaphragm : IRIS
19-across – Collectively, a group of females : WOMENFOLK
All Down Clues and Answers:
1-down – Fine leather : CALFSKIN
2-down – Belied : EDIBLE
3-down – Indicating excitement : AFLAME
4-down – Earn a living : WORK
6-down – Unobstructed : NAVIGABLE
7-down – Prescribed term : TIMELIMIT
12-down – Extremely lazy : BONEIDLE
14-down – Done for : RUINED
15-down – Exit a computer : LOGOFF
17-down – Islet found in a river, : EYOT
This crossword has in total 20 where 10 are across and 10 are down.