Related Clues:

• Test-taking tip?
• An Indian rubber
• Piece of rubber for deleting pencil marks
• It's used to rub out
• Implement for rubbing out
• Soft limestone
• Implement to rub out
• A schoolboy's rubber
• Rubber, thing that wipes out
• With which to rub out
• A student's rubber, or the one who uses it
• White, soft rock
• Might this do away with the times you've had with 'er?
• Might rubber give one a close, sound shave?
• Lots of times with 'er? There's the rub!