Related Clues:

• Subterranean pest
• Spymaster's worry
• Blemish
• You could see it on Marilyn's face
• Security problem
• ''The Wind in the Willows'' character
• Double agent
• CIA operative
• Furry tunneler
• Destructive digger
• Spy
• Underground figure?
• Marilyn Monroe feature
• Spy on the inside
• Burrowing rodent