Related Clues:

• Mop, as a deck
• Best on a chessboard
• Hand mop?
• Ear-cleaning implement
• Missing sock
• Other half
• Other sock, say
• Crime lab item
• DNA-sampling tool
• Play or room follower
• Bit of cotton on a stick
• Clean a deck
• Fischer coup de grace
• Team up with partner
• Pal on team