Clockword

The solutions from 1 to 12 are all six-letter words ending with the letter H in the centre. Moving clockwise from 1, the letters in the outer circle will spell out the name of an American actor.

1. Support

2. Join

3. Salad vegetable

4. Start off

5. Apparition

6. Primitive tool

7. Instigator of lawlessness

8. Beat

9. Pipe

10. Impish

11. Savour

12. Swap