1: Mineral springs start to moderate involuntary muscular contraction (5)
4: Right, turn right to play with robot (3)
6: Cooped up in Essex: pelicans, it would turn out (5)
7: First get a French weapon. (3)
8: Coats need woven yarns (9)
10: Leaders of Orioles and Rangers stick in the dugout? (3)
11: Run around near a stadium (5)
15: Proficient in arithmetic, starting with short division (5)