Related Clues:

• Scratch, as furniture
• Nick, maybe
• Dent, e.g.
• Devalue for a collector, maybe
• Prevent from being perfect
• Con artist's targets
• Put a dent in
• Devalue for a collector
• Take away from
• Scratch or scuff
• Spoil, deface
• Impair, damage
• Spoil or deface
• Spoil, damage
• Grades assigned to school work