Related Clues:

• Montmartre topper
• Candidate's throw-in
• Teapot part
• "Put a ___ on it!"
• Teapot cover
• Keep in check
• Flapper accessory
• Return addressee on Wile E.'s packages
• It may be checked
• It goes over your head
• It may be passed or cocked
• Tours topper
• Head liner?
• Foreign Legion cap
• Artist's cap, stereotypically