CLOCKWORD
The solutions from 1 to 12 are all six-letter words ending with the letter R in the centre. Moving clockwise from 1, the letters in the outer circle will spell out the name of a psychologist and physician.
1. Rubber
2. Knife
3. Awe
4. Reply
5. Rota
6. Incompetent person
7. Stevedore
8. Cream-filled pastry
9. Binge
10. Wild ass
11. Digit
12. Stablehand