Related Clues:

• They're nonreturnable
• Passes easily
• Great, in slang
• Whizzes
• Top-notch
• Some 120 m.p.h. serves
• Scores on a serve
• Hand helpers
• Experts
• High fliers
• Cards up one's sleeve?
• Top parts of suits
• Business types
• Ones that may be high?
• Makes a hole-in-one