Related Clues:

• Coffee additive
• Doubled, a 1969 #1 hit song
• Pot's top
• Something flipped
• Spill guard
• It's flipped when you flip
• It may be flipped
• Pop-top, for one
• Coffee add-in
• Airport convenience
• Container cover
• Eye shade?
• Part of a jack-in-the-box
• Baker's staple
• Tupperware unit