Related Clues:

• Make a photoengraving
• Be an eager beaver
• Emulate a rodent
• Cause persistent worry
• Do art on glass, say
• Emulate Albrecht Durer
• Chip away, as support
• Decorate using acid, as glass
• Shrink slowly
• Work one's incisors
• Do art on glass
• Eat off the land?
• Outline permanently
• Act like a rat
• Diminish naturally