Yesterday’s GK crossword

Across:

6 Umlaut, 7 Garlic, 10 Tabasco, 11 Twins, 12 Ruby, 13 Zebra, 16 Hergé, 17 Fang, 20 Tulip, 21 Insects, 22 Niacin, 23 Collie.

Down:

1 Buster Keaton, 2 Ali Baba, 3 Pulse, 4 Masters, 5 Alvis, 8 Cash register, 9 Lohengrin, 14 Memphis, 15 La Scala, 18 Allah, 19 Ascot.