Related Clues:

• They may bug you
• Breakwaters
• Burrowing mammals
• Surreptitious types
• Spies
• Tunneling mammals
• Secret agents
• Backyard burrowers
• Uses a tap, perhaps
• Bond's cohorts
• Dahlias and daisies
• Le Carré characters
• Small excavators
• They may be planted
• Notices