Related Clues:

• Wipe, as a blackboard
• Make blank
• Relieve
• Prepare for reuse, perhaps
• Efface
• Wipe clean
• Rub off
• Show fallibility
• Remove lead
• Demagnetize a diskette
• One way to get the lead out?
• Cleared (of)
• Bleep out
• Shake an Etch A Sketch
• Free (from)