Related Clues:

• Fold or mutilate
• Graffiti, say
• Erode gradually
• Damage the surface
• Take away from, as profits
• Cause some damage
• Nick, e.g.
• Chip, maybe
• Part of drain
• Spoil, as a view
• Erode gradually, as savings
• Put a scuff on, e.g.
• ___ del Plata (Argentine port)
• Spray graffiti on, say
• 'Striving to better, oft we ___ what's well': Shak.