1: Pattern upset clients (7)

5: Physician that is right is less interesting (5)

6: Sister gets nothing, we hear (3)

7: Everlasting variety for Peter and Paul (9)

8: Plan to return with woman (3)

9: Instrument on top of tree or shrub (5)

11: Fools around near hellholes (7)

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

2: Witty remark, for example, about constant batterer (7)

3: Confined bear without a trade (9)

4: Record left by teacher in Siam (5)

6: Nerve cells that could make nose run (7)

7: Drink from fractured pipes (5)

10: Greek characters suggest dawn (3)