1: Grouper swimming to make new formation (7)
5: Bounder beheaded by slippery swimmer (3)
7: This is always resplendent, adorning heads (5)
8: Confined bear without a trade (9)
9: Got excited by unusual tulip (3,2)
10: Bumped into yours truly at junction (3).
11: Skill is extremely tangible for a performer (7)