Related Clues:

• Green light
• 'That's it!'
• Cry of success
• Aye-aye
• 'You betcha!'
• Sanction
• Proposal response
• Toady's response
• 'Wow!'
• 'Indubitably'
• See 58-Down
• La la starter
• 'Agreed!'
• La-la lead-in
• 'Right on!'