Related Clues:

• Stamps one's approval
• Gives the thumbs-up to
• Clearances
• Brief approvals
• Gives it a 'go'?
• Gives it a "go"?
• Doesn't deny
• Gives it a thumbs-up
• Gives one's imprimatur to
• Gives a thumbs-up to
• Stamps, say
• Approves, for short
• Lets pass
• Gives the go ahead
• Allows to proceed