1: Mineral springs start to moderate involuntary muscular contraction (5)

3: Now Elton heard California's big one (3)

5: Year inside for undone expert (5)

7: Vet theatre opening 8-down (3)

8: Evil colleague, for example, breaking in contrary to law (9)

9: Pronounced ability to smell negative votes (3)

10: Climaxes after starting advances (5)

12: Going after the final piece of puzzle for a very long time (3)

13: We turned up with endless Irish pitchers (5)

1: Begins seeing another divorcee? Deplorable. (3)

2: Wild ermine encaged years here?! (9)

3: Records that could be hits (7)

4: Game for drunkard (5)

6: Moscow politician revolting in style (7)

8: Mousy girlfriend loses head and bellybutton (5)

11: Call for help oddly stops (3)