Answer:

detective

AnswerCrossword Clue
DETECTIVEDICK
DETECTIVEPI
DETECTIVE"Shamus"
DETECTIVEQueen, for one
DETECTIVETracy?
DETECTIVE29-Down's job
DETECTIVESpade or Marlowe
DETECTIVEPrivate investigator
DETECTIVEWhodunit hero
DETECTIVEMember of the police department.
DETECTIVEDupin or Lupin.
DETECTIVEProtector of the public
DETECTIVE23-Across's occupation
DETECTIVEPeter Gunn e.g.
DETECTIVEInvestigator