Related Clues:

• Wipe away the chalk
• Nullify the effect of
• Negate entirely
• Remove from memory
• Backspace through
• Recorder function
• Use the soft end of the pencil
• Shake an Etch A Sketch, e.g.
• Delete from memory
• Name-drop, maybe?
• Tape over
• Rub off the board
• Start to correct
• Use the flat end?
• Use Artgum