Related Clues:
- Clue hunter, informally
- Sleuth
- Gumshoe, for short
- Person with a magnifying glass, for short?
- Short investigator
- Sleuth, slangily
- Noir investigator
- Sleuth, in slang
- Private eye, slangily
- Magnum, e.g., briefly
- Spade, e.g., slangily
- Spade, e.g., briefly
- Sherlock
- V.I. Warshawski, e.g.
- Dick Tracy is one, briefly