Related Clues:

• One in a hand
• Half of 21
• Outstanding service
• Aviation hero, e.g.
• Suit top?
• Pass easily
• Expert pilot
• Royal flush top
• 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