This crossword No. 890 clues and answers were published on Sun 14 Oct 2012 and the puzzle can be visited by following The Guardian Speedy Crossword No. 890 link.
All Across Clues and Answers:
1-across – Without musical accompaniment : ACAPPELLA
8-across – Abominable snowman : YETI
9-across – Deliberately : ONPURPOSE
10-across – Small valley : DELL
13-across – Rugby re-start : SCRUM
15-across – Allow : PERMIT
16-across – Rotten : PUTRID
17-across – Swamp, overwhelm : ENGULF
19-across – Harvesting tool : SCYTHE
20-across – Cruising vessel : YACHT
21-across – Panache : ELAN
24-across – Indoctrinate : BRAINWASH
25-across – Summit, crowning point : ACME
26-across – Whipping boy : SCAPEGOAT
All Down Clues and Answers:
2-down – Rabbit : CONY
3-down – Sulk : POUT
4-down – Anticipate : EXPECT
5-down – Improvised arrangement : LASHUP
6-down – Fame : CELEBRITY
7-down – Legal ownership document : TITLEDEED
11-down – Short-lived : EPHEMERAL
12-down – Menu of events : PROGRAMME
13-down – Asinine : SILLY
14-down – Cheat, defraud : MULCT
18-down – Textile : FABRIC
19-down – Small crustacean : SHRIMP
22-down – Cotton on : TWIG
23-down – Continent : ASIA
This crossword has in total 28 where 14 are across and 14 are down.