This crossword No. 866 clues and answers were published on Sun 29 Apr 2012 and the puzzle can be visited by following The Guardian Speedy Crossword No. 866 link.
All Across Clues and Answers:
1-across – Polish : BUFF
3-across – Obstinate : STUBBORN
8-across – Tightly drawn : TAUT
9-across – Extras : SUNDRIES
11-across – Philanthropic : ALTRUISTIC
14-across – Elbows out : AKIMBO
15-across – Plan of action : AGENDA
17-across – Ostentatious : FLAMBOYANT
20-across – Tirade : HARANGUE
21-across – Invoice : BILL
22-across – Nomad : WANDERER
23-across – Greek cheese : FETA
All Down Clues and Answers:
1-down – Breach of trust : BETRAYAL
2-down – Water feature : FOUNTAIN
4-down – Platitude, trite statement : TRUISM
5-down – Type of terrier : BEDLINGTON
6-down – Roman poet : OVID
7-down – Bouquet : NOSE
10-down – Disturbed state : TURBULENCE
12-down – Incursive : INVASIVE
13-down – Spanish shawl : MANTILLA
16-down – Resistant, unaffected : IMMUNE
18-down – Masticate : CHEW
19-down – Smile : GRIN
This crossword has in total 24 where 12 are across and 12 are down.