Related Clues:

• Nullified tennis serves
• '___ not fight'
• Stamps of approval
• Reasons for do-overs
• "Why don't we?"
• Gives the go-ahead
• Repeated services
• "Why not?"
• Response to "Shall we?"
• Agrees to
• Authorizes
• 'Sure, why not!'
• '-- go!'
• Approves of
• Shall we?