Related Clues:

• Cover
• See 1-Across
• You may assume it
• Another name
• Moniker
• Pseudonym
• Mark Twain, for one
• Handle
• Anonym
• The Jackal, e.g.
• Pen name
• Assumed name
• George Sand, for one
• Spy's name, possibly
• Swindler's name, possibly