Related Clues:

• It cannot be returned
• Past master
• Serve well done?
• Wicked one
• Chuck Yeager, for one
• Necessity for a natural in blackjack
• It may be up your sleeve
• Skilled player
• Big name in hardware stores
• Good tennis score
• Mental fog
• Serve that can't be returned
• One in 21
• Top fighter pilot
• One on a golf scorecard