This crossword No. 12496 clues and answers were published on Sat 29 May 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12496 link.
All Across Clues and Answers:
1-across – Passion : ARDOUR
4-across – Pure : CHASTE
9-across – Defame : BLACKEN
10-across – New England state : MAINE
11-across – Wide difference : CHASM
12-across – Pipe for fluid — means of access : CONDUIT
13-across – Street urchin : GUTTERSNIPE
18-across – Pry knot : KRYPTON
20-across – Make confused — go bad : ADDLE
22-across – View : VISTA
23-across – Height — prestige : STATURE
24-across – Sycophant : YESMAN
25-across – Formal warning : CAVEAT
All Down Clues and Answers:
1-down – Office of the head of a monastery : ABBACY
2-down – Theatrical entertainment : DRAMA
3-down – : UNKEMPT
5-down – Muscular fellow : HEMAN
6-down – Winter sports ramp : SKIJUMP
7-down – Chooses : ELECTS
8-down – Something belonging to another time : ANACHRONISM
14-down – James Joyce novel : ULYSSES
15-down – A lot of falling water : NIAGARA
16-down – Menial worker : SKIVVY
17-down – Stick together — substance used by a builder : CEMENT
19-down – Ornamental head gear : TIARA
21-down – 40-40 in tennis — 2 in cards : DEUCE
This crossword has in total 26 where 13 are across and 13 are down.