Related Clues:

• Undercover cop, maybe
• Sitting duck?
• Undercover cop, at times
• Duck hunter's lure
• Red herring
• Fake drake, e.g.
• Tricker
• Wooden duck, say
• Diversionary tactic
• Not-quacker?
• It's distracting
• Hunter's device
• Blind
• Police sting participant
• Plastic duck, e.g.