Related Clues:

• Doesn't hold back
• Fronts a band, perhaps
• Antdrug agents
• Two-timing rodents?
• Laboratory maze navigators
• Charlie Brown's "Darn it!"
• Some rodents
• Croons
• Ratter-outers
• Giveaways
• Proverbial sinking ship deserters
• Discloses, as secrets
• Hamelin headache
• Brown expletive
• Emulates a rat