Yesterday’s solutions:

Across: 1 Typist’s error. 7 Motto. 8 Catch. 9 Nod. 10 Rearrange. 11 Polish. 12 Mob-law. 15 Teaspoons. 17 Bus. 18 Exist. 19 Swell. 21 In slow motion.

Down: 1 Train spotter. 2 Sit. 3 Slogan. 4 Race riots. 5 Oaten. 6 Three wise men. 7 Medal. 10 Rose-petal. 13 Label. 14 Bow-saw. 16 Align. 20 Ego.