Answer:

sleuth

AnswerCrossword Clue
SLEUTHHammer or Spade
SLEUTHWimsey, for one
SLEUTHGumshoe
SLEUTHClue collector
SLEUTHDetective
SLEUTH'72 Laurence Olivier mystery
SLEUTHOlivier-Caine mystery of '73
SLEUTHSherlock Holmes or Hercule Poirot
SLEUTHOlivier-Caine mystery of 1972
SLEUTHMovie with Michael Caine and Laurence Olivier
SLEUTHTV's Mannix or Monk, e.g.
SLEUTHMystery man?
SLEUTHMiss Marple, e.g.
SLEUTHNancy Drew, e.g.
SLEUTHClue seeker
SLEUTHMagnum or Spade
SLEUTHNero Wolfe, e.g.
SLEUTHHolmes or Poirot
SLEUTHTec
SLEUTHWhodunit hero
SLEUTHDick
SLEUTHNero or Hercule.
SLEUTHHercule Poirot, for example.
SLEUTHDetective.
SLEUTHGumshoe.
SLEUTHSherlock.
SLEUTHWhodunit character.
SLEUTHHawkshaw.
SLEUTHClue man.
SLEUTHPrivate eye.
SLEUTHSam Spade or Philo Vance
SLEUTHOlivier-Caine film
SLEUTHNero or Ellery
SLEUTHOlivier-Caine thriller
SLEUTHCaine-Olivier film
SLEUTHOlivier-Caine movie: 1972
SLEUTHMagnifying glass carrier, maybe
SLEUTHMr. Moto, e.g.
SLEUTHOne may follow a lead
SLEUTHDrew in books?