CLOCKKWWOORRDD

The solutions from 1 to 12 are all six-letter words ending with the letter D in the centre. Moving clockwise from 1, the letters in the other circle will spell out the name of a Welsh pop star.

1. Connected 2. Pressed 3. Fired 4. Squabbled 5. Idiotic 6. Swore 7. University town 8. Examined 9. Melted

10. Myth

11. Stretch

12. Followed