Related Clues:

• Mexican sauce
• Person making unauthorized reports
• Leak source, perhaps
• Burrowing beast
• Small insectivorous mammal
• Burrowing mammal
• Planted agent
• Underground mammal
• Spy-in-hiding
• Suburban burrower
• Lawn tunneler
• Burrowing critter
• Intelligence problem
• Lawn burrower
• CIA worry