This crossword No. 15946 clues and answers were published on Wed 16 Jun 2021 and the puzzle can be visited by following The Guardian Quick Crossword No. 15946 link.
All Across Clues and Answers:
1-across – Persistent nuisance : PEST
3-across – Curved sword : SCIMITAR
9-across – Endurance : STAMINA
10-across – Not a single person : NOONE
11-across – Biological units : CELLS
12-across – Hostility : ENMITY
14-across – American homeopath, arrested for murdering his wife Cora and hanged in London 1910 : DOCTORCRIPPEN
17-across – Support for one who is lame : CRUTCH
19-across – Heraldic black : SABLE
22-across – Synthetic fabric, resembling silk : RAYON
23-across – Sudden increase : UPSURGE
24-across – Miscellaneous items : SUNDRIES
25-across – So : THUS
All Down Clues and Answers:
1-down – Part of an address : POSTCODE
2-down – Temporise : STALL
4-down – Royal residence on The Mall in London — cheer on, as clue : CLARENCEHOUSE
5-down – : MINIM
6-down – Old-time dance in duple time : TWOSTEP
7-down – Smell offensively : REEK
8-down – Complete disaster : FIASCO
13-down – Numbers — steering : INTEGERS
15-down – Continue : CARRYON
16-down – Be adamant : INSIST
18-down – Domingo, Pavarotti or Carreras? : TENOR
20-down – Nativity : BIRTH
21-down – Greek god of love : EROS
This crossword has in total 26 where 13 are across and 13 are down.