MONDAY’S SOLUTION (No 7,309)

ACROSS: 1 Bamboozle. 6 Alp. 8 Prince. 9 Inter. 10 Sierra. 11 T-shirts. 13 Earthen. 16 Indigo. 18 Go far. 19 Grudge. 21 Ron. 22 Decorates. DOWN: 1 Bar. 2 Minor. 3 Operate. 4 Zurich. 5 Easter. 7 Periscope. 8 Passenger. 12 Snigger. 14 Refund. 15 Heroic. 17 Doubt. 20 Gas.