Related Clues:

• White rock
• It should cancel out mistake about a corner of England
• After one's gone over the paper, mistakes can be rectified
• Rubbing-out device
• One is often led to use it by mistake
• I cancel series after long time
• Rubber trees are cut down both sides and chopped up
• First letter of Canadian river needs changing, so this'll come in handy!
• Stationery item
• Destroyer of prince captured by emeer regularly
• One will rub out monarch after long periods
• One removes writing by Queen after ages
• Obliterator
• Clean-slate facilitator
• Tip for remedying mistakes?