1: Robin Goodfellow's ice hockey requisites (5)
2: Nothing we have to pay (3)
3: Bird dog devouring bad lad (4,5)
5: Bloody bored inside (3)
9: Children nicely holding back secret (5)
10: 500 = 100 + 0 - that's entertainment! (5)
11: Later round without an opponent (3)
13: Inflexible yet adjusted (3)