This crossword No. 422 clues and answers were published on Sun 19 Oct 2003 and the puzzle can be visited by following The Guardian Speedy Crossword No. 422 link.
All Across Clues and Answers:
1-across – Unlawful : ILLICIT
8-across – Of Spain and Portugal : IBERIAN
9-across – Half man, half horse : CENTAUR
10-across – Get better : IMPROVE
11-across – Sculptor of The Kiss : RODIN
13-across – Sorry : REGRETFUL
15-across – Old-fashioned photo taker : BOXCAMERA
18-across – Allude : REFER
21-across – Agnate : RELATED
22-across – First : INITIAL
23-across – Incident : EPISODE
24-across – Industrial activist : STRIKER
All Down Clues and Answers:
1-down – Bring upon oneself : INCUR
2-down – Ruled : LINED
3-down – Series of stimulated responses : CHAINREACTION
4-down – Wearisome : TIRING
5-down – Large family car : PEOPLECARRIER
6-down – Warning : TIPOFF
7-down – Harden by heating and cooling : ANNEAL
12-down – Greek spirit : OUZO
14-down – Impel : URGE
15-down – Trade by exchange : BARTER
16-down – Woody : XYLOID
17-down – Whirls : EDDIES
19-down – Body search : FRISK
20-down – Governor : RULER
This crossword has in total 26 where 12 are across and 14 are down.