Related Clues:

• Admittedly bound to change
• ''I'm sure too''
• Bound to upset, surely
• Almost certainly
• Show agreement, but changed to underpin love? Indisputably
• 'Can't argue with that!'
• Sign agreement — book available outside without question
• “Without question!”
• ... certainly bound to condemnation
• Odd sign at a counselor’s office?
• Bob, off to steal first of booty, I'm sure
• Boxer's first down in fight after agreement, most likely
• Indicate agreement, with nothing but excited certainty