2: Charged a couple of hundred, getting exploited (7)

6: Venomous enemy lurks in Caspians (3)

7: Weird eastern lake (5)

8: I bang rock, disturbing snake (4,5)

11: Dizzy Ben is a playwright (5)

12: Later round without an opponent (3)

13: Last offer (4,3)

1: Follow south for lecture (5)

2: Height is equal to three-fifths of the first one (3)

3: Increase in force may finish in soccer riot (9)

4: Fancy brush? (5)

5: Pass mould (3)

9: Arenas almost filling with the hooter (5)

10: Run around near a stadium (5)

11: Equips for attacks (4)

12: The end, you say? On the contrary! (3)