1: Mineral springs start to moderate involuntary muscular contraction (5)
3: Anger that is constraining response (3)
5: Dangerous in all kinds of pool. (5)
8: Make the move its only temporary (9)
10: Main nerve carries most central portion (5)
12: A hint for the snooker champ? (3)
13: Instrument on top of tree or shrub (5)