Related Clues:

• One with a handler
• Listening device user
• One has a cover but isn't an open book
• Smart or Solo
• One who bugs another person?
• Person with a fake passport, maybe
• Undercover asset
• Telephoto lens user, often
• Use a nanny cam, say
• Eve in “Killing Eve,” for one
• Espionage agent
• One may hide a camera
• One lurking in the shadows
• One sharing secrets
• Intelligence agency asset