Related Clues:

• Emulate a beaver
• Make one's permanent mark
• Wear down
• Disassemble naturally
• Delineate
• Aquatint
• Do art on metal, e.g.
• Work like a beaver
• Decorate a copperplate
• Disintegrate
• Do work on glass, say
• Fall off, as popularity
• Emulate Otto Dix
• What aquatinters do
• Embellish, as glass