1: Later round without an opponent (3)
5: Number One in facetiousness (3)
6: Idler, upset, stirred (5)
8: I bang rock, disturbing snake (4,5)
10: Emily gets into the topic (5)
11: Tweak with wrong end of a pin (3)
12: Airship loose after opening bombardment (5)
13: First get a French weapon. (3)