This crossword No. 539 clues and answers were published on Sun 15 Jan 2006 and the puzzle can be visited by following The Guardian Speedy Crossword No. 539 link.
All Across Clues and Answers:
1-across – Suited a particular purpose : FILLEDTHE
8-across – See 1 : BILL
9-across – Privacy : SECLUSION
10-across – Surrender : CEDE
13-across – Throat condition with a hacking cough : CROUP
15-across – Preserve : EMBALM
16-across – Clergyman : PARSON
17-across – Arboreal lizard of S America : IGUANA
19-across – Train : ESCORT
20-across – Fund : KITTY
21-across – Drag’s one’s feet : LAGS
24-across – Come to reside in a country : IMMIGRATE
25-across – Becomes redundant : GETS
26-across – See 25 : ONESCARDS
All Down Clues and Answers:
2-down – Wild mountain goat : IBEX
3-down – Rise and fall : LILT
4-down – Win over : DISARM
5-down – : HOOKUP
6-down – Amusement : DIVERSION
7-down – Act reciprocally : ALTERNATE
11-down – Philosophy of causation : AETIOLOGY
12-down – Chastise : OBJURGATE
13-down – Harsh metallic sound : CLANK
14-down – Type of paralysis : PALSY
18-down – Aviator : AIRMAN
19-down – Itches : ETHICS
22-down – Operatic solo, duet, etc : ARIA
23-down – Bejewel : STUD
This crossword has in total 28 where 14 are across and 14 are down.