Related Clues:
- Spy in a spot
- Embedded agent
- Tunneller has trouble, losing way
- Tunnel-boring machine
- Intelligence agency problem
- Infiltrating spy
- Colony attacker
- Inside informant
- Spy a mark on the skin
- Mountain Goats song for a double agent?
- Roger Glover "Old Blind ___"
- Alfie "Hey ___"
- Double agent for competing record company
- Underground pest
- Garden tunneler