2: Fish spawn upstream in little orifices (3)
3: In abundance, doing a bun dance (9)
4: Transfixes the finger-tips (5)
5: Uncrate 'Rampaging Horseman'? (7)
6: Putting your foot in it may incite Royal intervention (7)
9: Slangily, hip old English author (5)
11: Neither's partner participated in an orchestra (3)