Related Clues:

• Go to waste
• Render useless
• Applesauce
• Veer
• Infect
• Feb. follower
• Just scratch the surface?
• Become a traitor
• Become lumpy
• Deterioration
• Curdle
• Devastate
• Rejoinder to "'Tis!"
• Pompeii, e.g., today
• Pivot