Related Clues:

• Gives one's imprimatur to
• Gives a thumbs-up to
• Stamps, say
• Approves, for short
• Lets pass
• Gives the go ahead
• Allows to proceed
• Shakes on
• Lets go through
• Declares acceptable
• Initials, in a way
• They're not forbidding
• Nods, say
• Agrees to wines not being opened
• Authorises love-letters being read out