PREVIOUS SOLUTION

Across: 1 Oxford bags; 8 Tenet; 9 Riotous; 10 Dynamic; 11 Augur (Auger); 12 Semicolon; 15 Gamut; 17 Rum baba; 19 Purpose; 20 Alone(loan); 21 In hot water.

Down: 2 Xenon; 3 Optimum; 4 Direct current; 5 Aroma; 6 Shotgun; 7 Tsar; 8 Tidy; 12 Samurai; 13 Lambada; 14 Lace; 15 Gape; 16 Tooth (e); 18 Abode.