Related Clues:

• Jar part
• It might be stuffed or cuffed
• It participates in cover-ups
• Eye protection
• Something you may flip
• It's in front of the cornea
• Chapeau
• "Keep your ___ on!"
• Shuteye shutter
• Gambler's loss, figuratively
• Eye cover
• Pot's top
• Something flipped
• Big loss in Vegas?
• Tank top, e.g.