Related Clues:

• Ring contents, maybe
• Tam or bowler
• Rabbit's hideout?
• Fedora or derby
• Pillbox, e.g
• "The Cat in the ___"
• Tam O' Shanter, or pork pie
• Beret or bonnet
• It keeps you covered
• Busby or derby
• It may be felt on your head
• Doffed thing
• Gull's nesting place, often
• House topper
• Sun screen?