This crossword No. 14264 clues and answers were published on Wed 27 Jan 2016 and the puzzle can be visited by following The Guardian Quick Crossword No. 14264 link.
All Across Clues and Answers:
1-across – Modifications : CHANGES
8-across – In which things vanish, magically : THINAIR
9-across – Obstacle : BARRIER
10-across – Make mentally unbalanced : UNHINGE
11-across – Theatrical production : DRAMA
13-across – Meagre and given grudgingly : NIGGARDLY
15-across – Hit hard : CLOBBERED
18-across – Paving stones : FLAGS
21-across – Take out : EXTRACT
22-across – Slow flow : TRICKLE
23-across – Exceptional : SPECIAL
24-across – Incited : EGGEDON
All Down Clues and Answers:
1-down – Raised to the third power : CUBED
2-down – Main artery : AORTA
3-down – Endure misfortune stoically : GRINANDBEARIT
4-down – Threaded : STRUNG
5-down – Traditional Scottish dance : HIGHLANDFLING
6-down – Those condemned to eternal punishment : DAMNED
7-down – Without restriction : FREELY
12-down – Fidel’s younger brother and successor : RAUL
14-down – Protracted : LONG
15-down – English comic actor and writer, b. 1939 : CLEESE
16-down – Old stableman at an inn : OSTLER
17-down – Vibrate noisily : RATTLE
19-down – Enquired : ASKED
20-down – Gertrude __, avant-garde US author, d. 1946 : STEIN
This crossword has in total 26 where 12 are across and 14 are down.