This crossword No. 15137 clues and answers were published on Mon 12 Nov 2018 and the puzzle can be visited by following The Guardian Quick Crossword No. 15137 link.
All Across Clues and Answers:
1-across – Incredulity : DISBELIEF
8-across – Golf clubs : IRONS
9-across – Quick look : GLIMPSE
10-across – Middle East capital : DAMASCUS
11-across – Hill part — head part : BROW
13-across – Fixed : MENDED
14-across – Wing of the main building : ANNEXE
16-across – Land measure : ACRE
17-across – Eschewing booze : TEETOTAL
19-across – Sumptuous : OPULENT
20-across – Fruit of the oak : ACORN
21-across – Basics : RUDIMENTS
All Down Clues and Answers:
1-down – Catastrophe : DISASTER
2-down – Engage by written agreement : SIGNUP
3-down – Way out : EXIT
4-down – Blemish : IMPERFECTION
5-down – Unconstrained : FREEWHEELING
6-down – Minor violation : MISDEMEANOUR
7-down – We can agree on this : COMMONGROUND
12-down – First letters : INITIALS
15-down – English mathematician and physicist, d. 1727 : NEWTON
18-down – Cooperative unit : TEAM
This crossword has in total 22 where 12 are across and 10 are down.