Related Clues:

• 'You can say that again!'
• Mass assent
• Direct-mail response sticker
• Green light
• 'That's it!'
• 'Praise be!'
• Cry of success
• Aye-aye
• 'You betcha!'
• Sanction
• Proposal response
• Toady's response
• Church response
• 'Indubitably'
• See 58-Down