Related Clues:
- Watch from the bushes
- I ____
- Jason Bourne, for one
- Agent of espionage
- Le Carré's Smiley, for one
- Search for intelligence
- Plant gathering information
- Stratego piece with a monocle
- One who bugs people?
- Invasive plant
- Clancy novel staple
- Secret collector
- Many a character in TV's "The Americans"
- Human mole
- What was Caleb in the Bible?