Related Clues:

• Busters?
• Agents making busts
• ''I hate when that happens!''
• They look for deals
• ''Of all the luck!''
• Stoolies
• 'Oh, phooey!'
• Does some karaoke
• See 46 Across
• Acts the stoolie
• They're not exactly user-friendly
• "Consarn it!"
• Bust makers
• Some on stakeouts
• "Aw, heck!"