Related Clues:

• Chew persistently
• Nibble at
• Stubborn courage
• Eat like a mouse
• Chew like a rat
• Chew away
• Eat indelicately
• Beach sandal problem
• "True ___" (John Wayne movie)
• Coarse particles
• Abrasive material
• Imitate a rodent
• Emulate a mouse or beaver
• Wear away, in a way
• Eat away (at)