SOLUTION TO PRIZE CROSSWORD No. 15,986:

ACROSS: 1 Ad infinitum. 9 Counsel. 10 Impasse. 11 Tag. 12 Unearth. 13 Hectare. 14 The. 15 Doggo. 17 Leery. 18 Satie. 20 Aorta. 22 Aim. 24 Earache. 25 Legally. 26 Ski. 27 Pharaoh. 28 Measure. 29 Electronics. DOWN: 1 Amusement arcade. 2 Insured. 3 Filth. 4 Neighbour. 5 Topical. 6 Massage parlours. 7 Occult. 8 Celery. 16 Grapeshot. 18 Steppe. 19 Enclave. 21 Afghani. 23 Mayhem. 25 Limbo.