Slight component of fisherman's lures (4)
I believe the answer is:
slur
'slight' is the definition.
(I've seen this before)
'component of fisherman's lures' is the wordplay.
'component of' indicates the answer is hidden within the clue (I've seen this in other clues).
'SLUR' is hidden within 'fishermans lures'.
(Other definitions for slur that I've seen before include "Pronounce indistinctly or cast abuse on reputation" , "Discredit to one's reputation" , "Slight - aspersion" , "Pronounce indistinctly or smear" , "Disparagement" .)