YESTERDAY’S CRYPTIC SOLUTION:

Across: 1 Boom; 3 Helpless; 9 Funfair; 10 Opera; 11 Indelible ink; 13 Noting; 15 Italic; 17 Single-handed; 20 China; 21 Decider; 22 Self-same; 23 Leap.

Down: 1 Befriend; 2 Owned; 4 Enrobe; 5 Protest march; 6 Eternal; 7 Seal; 8 Falling glass; 12 Acid drop; 14 Trivial; 16 Seldom; 18 Dodge; 19 Aces.