Related Clues:

• Crook's pseudonym
• False or assumed name
• A lassie with false names
• Incognito traveler's invention
• Rap sheet name, maybe
• Pseudonyms
• Phony moniker
• Names on falsified papers
• Police blotter datum
• Perp's cover
• Criminals and computer operators may use one
• Not the real name
• Another name for a person
• Maybe Smith and Jones sail in the sea upset
• Something a thief might take