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 human rights advocate.

1. Financial supporter

2. Type of chemical compound

3. Bower 4. Digit 5. Inventor 6. Fix firmly 7. Chatter 8. Bowman 9. Shopkeeper 10. Hot water spring 11. One who receives wages 12. Sword