Related Clues:

• Word of agreement
• Gives the nod to
• '___ go!'
• Signs off on
• Gives permission to
• Approves
• Stamps, maybe
• 'Shall we?' reply
• Green-lights
• Positive response to ''Shall we?''
• Gives the green light to
• Answer to ''Shall we?''
• Green lights
• Response to 'Shall we?'
• Says yes to