Related Clues:

• Harbour a spy
• Amount of stuff obtainable from spy
• Spymaster's expression of approval for spy
• Spicy sauce for steak
• "The Wind in the Willows" figure
• Subterranean critter
• Spy – one going underground
• Mayor of Limerick introduces English muckraker
• Lawn problem
• Spy in a spot
• Embedded agent
• Tunneller has trouble, losing way
• Tunnel-boring machine
• Intelligence agency problem
• Infiltrating spy