1: Laid off, breadwinner's starting to wing it (2-3)
2: Perfect counter-spy equipment (3)
3: Exercise is right for a one-time actor (9)
4: Reptile eventually climbing a hill (5)
5: Man, what an avant-garde US artist! (3)
9: Carrying on thus, for some reason I create a sort of boom (5)
10: Raced around a tree (5)
11: Escalating naked conflict (3)
13: Hear Native American appeal (3)