Private eye, for short (3)
I believe the answer is:
tec
(Other definitions for tec that I've seen before include "CID officer (abbrev.)" , "Busy" , "Investigator" , "Detective (colloq.)" .)
I've seen this clue in the Penny Press.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.