This crossword No. 871 clues and answers were published on Sun 03 Jun 2012 and the puzzle can be visited by following The Guardian Speedy Crossword No. 871 link.
All Across Clues and Answers:
1-across – Cause to retire from a post : PENSIONOFF
7-across – Submit to an experience : UNDERGO
8-across – Recurrent theme in music… : MOTIF
10-across – …jaunty rhythm, perhaps : LILT
11-across – Aged hare? : HEADGEAR
13-across – Affects : KNOCKS
15-across – See 13 : FORSIX
17-across – Change, especially biological or genetic : MUTATION
18-across – Computer junk mail : SPAM
21-across – Male duck : DRAKE
22-across – Someone who refuses to accept advice or information from others : KNOWALL
23-across – Ready to leave : ALLSETTOGO
All Down Clues and Answers:
1-down – Of or relating to the feet : PEDAL
2-down – Mean : NORM
3-down – : INONES
4-down – Try to impress by talking about ‘important’ connections : NAMEDROP
5-down – Well-being : FITNESS
6-down – Go flat out, usually trying to escape someone : RUNLIKEMAD
9-down – As an illustration : FOREXAMPLE
12-down – Causes to move quickly over a surface with small jumps : SKITTERS
14-down – Spring, drain or other source of water : OUTFALL
16-down – See 3 : POCKET
19-down – Quiet : PIANO
20-down – Cancelled : NOGO
This crossword has in total 24 where 12 are across and 12 are down.