Related Clues:

• Invalidate
• Some people can carry it, others cannot
• Go back to square one
• Bring into harmony
• Bring to naught
• Annul
• Adjust
• Set right, maybe
• Upright adjustment
• Work to achieve harmony
• Rescind
• Prepare to slip out of, perhaps
• Piece of music
• Let loose
• Use a pick, maybe