Thursday’s solutions:

Across: 1 Dancer. 4 Flank. 7 Half-nelson. 8 Atop. 9 Dummy. 11 Drivers. 13 Seconds. 15 Buy up. 17 Urge. 18 Prima donna. 20 Dwell. 21 Shower.

Down: 1 Demand. 2 Clap. 3 Rafters. 4 Field. 5 Ass. 6 Kenny. 7 Homily. 10 Mantra. 12 Serious. 14 Skewer. 15 Biped. 16 Pearl. 17 Undo. 19 Ike.