Related Clues:

• Verbal thumbs-up
• "Permission granted"
• Word of affirmation
• 'I dunno'
• "You win"
• Approving answer
• "I'm clueless!"
• Informally, all right
• Common jargon for yes, all right
• There's nothing with the girl to make it 8 across
• Calling Katherine to say it's 18 down
• ''Go ahead''
• Acceptance word
• Tolerable
• "No clue"