Related Clues:

• Run in
• Police action
• A spy might work under one
• Stage name
• Impostor's cover
• Nom de guerre
• A thief may go under one
• Something to go under
• Fake handle?
• Name on a police blotter
• Cop's collar
• What a person may go under
• Assumed identity
• Jennifer Garner spy series
• Nom de plume