Related Clues:

• Imitate a beaver
• Chew away at
• Act the rodent
• Eat like a rat
• Emulate a mouse
• Beleaguer, with 'at'
• Use the teeth to erode
• Work on a bone, say
• Chew like a rodent
• Eat (at)
• Wear away by nibbling
• Chew, squirrel-style
• Emulate a rat
• Be an eager beaver
• Cause persistent worry