CLOCK WORD
The solutions from 1 to 12 are all six-letter words ending with the letter M in the centre. Moving clockwise from 1, the letters in the outer circle will spell out the name of a late British singer and comedienne.
1. Mineral 2. Haphazard 3. Assert 4. Tradition 5. Tell 6. Respect
7. Unit of length 8. Weak 9. Symbol 10. Supple 11. Deprive of
weapons 12. Rarely