Related Clues:

• Many rappers' names
• What a criminal may assume
• Thieves often go by them
• Sadly imprisons one giving false name
• Name used by a 26-Across, perhaps
• A spy may go by one
• Many literary anagrams
• Secret identity
• Also, in name only
• Other names
• Spy's "name"
• Doe, perhaps
• What a celebrity might use at a hotel
• Made-up names
• Sundance Kid, for one