Related Clues:

• His work is a bust
• Antidrug agent
• *Ace ___ Stories (old detective pulp magazine)
• U.S. agent
• One might work with dogs
• Fed after Capone
• Treasury agent, slangily
• One awaiting a shipment, maybe
• Undercover drug agent
• "Traffic" cop
• Hoover hiree
• Hood hunter
• Paranoid fed. employee
• Bootlegger's bugbear
• Druggie buster