1A. Fast runner, easily beaten (6)
R ? ? ? ? ?
14A. Seat of battle? (5)
? E ? A?
15D. Its contents will be cracked (3-3)
? ? ? ? ? ?
21A. Perform a self-effacing action (6-7)
? ? ? ? I ? S ? I ? I ? E
2D. Unlucky flier (4-2-3-4)
? ? R ? O ? T ? ? ? ? ? ?