Related Clues:

• Must
• Gives the green light
• 'Why don't we?'
• Enthusiastic response
• Leases
• 'O.K., why not?'
• 'Oh, why not?'
• Answer to 'Shall we?'
• Positive reply to an invitation
• Cry of concurrence
• Permits
• Doesn't disallow
• Word of agreement
• Must, informally
• Gives permission to