Intel seeker (3)
I believe the answer is:
spy
'intel seeker' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for spy that I've seen before include "Secret agent of government" , "One who collects secret information as for government" , "Glimpse" , "Person who secretly collects information as for government" , "Catch sight of" .)