Related Clues:

• Underground tunneler
• Suburban tunneler
• Place bugs or wires
• Man of intelligence
• Burrowing insectivore
• Skin mark
• Cold War figure
• Burrowing creature
• Austin Powers, e.g.
• Bond, for example
• George Smiley, e.g.
• Secret trader
• One of Smiley's people
• Mata Hari, for one
• Burrowing animal