Yesterday’s solutions:

Across: 1 Tennis elbow. 7 Wait. 8 Bollard. 9 Two. 10 Nacho. 11 Patron. 13 Rhebok. 16 Exact. 18 Sob. 19 At heart. 20 Roam. 21 Dual purpose.

Down: 1 Trauma. 2 Natter. 3 Inborn. 4 Ellen. 5 Bear cub. 6 Wedlock. 11 Piebald. 12 Trachea. 13 Roster. 14 Embryo. 15 Outage. 17 Tramp.