This crossword No. 1216 clues and answers were published on Sun 20 Jan 2019 and the puzzle can be visited by following The Guardian Speedy Crossword No. 1216 link.
All Across Clues and Answers:
1-across – Sharpness of vision : ACUITY
4-across – Isaac —— : ASIMOV
9-across – Outlaw; bandit : BRIGAND
10-across – Deceive; swindle : COZEN
11-across – Nationality of which 64% are Bohemian : CZECH
12-across – N American beaver-like aquatic rodent with dark glossy fur : MUSKRAT
13-across – Orchestral suite by Aaron Copland : APPALACHIAN
18-across – City of New York state; bison, colloquially : BUFFALO
20-across – Relish or delight; use tongue to eat or drink : LAPUP
22-across – Inflammatory, often suppurating skin lesion : ULCER
23-across – Find fee : EFFENDI
24-across – Walk uncertainly like the very young : TODDLE
25-across – Travelling a route regularly : PLYING
All Down Clues and Answers:
1-down – Jurisdiction of a Father or Mother Superior : ABBACY
2-down – Join forces : UNITE
3-down – Windpipe : TRACHEA
5-down – Divisions; dissenting cliques : SECTS
6-down – Polish dance in triple time : MAZURKA
7-down – Affectation; self-love : VANITY
8-down – Very common; of little value : ADIMEADOZEN
14-down – Humourless in expression : POFACED
15-down – Being of assistance to someone : HELPFUL
16-down – Shanghai : ABDUCT
17-down – See 13 Across : SPRING
19-down – Pertaining to the ear : AURAL
21-down – Charles —–, infamous US fraudster : PONZI
This crossword has in total 26 where 13 are across and 13 are down.