Fishing site (4)
I believe the answer is:
pier
'fishing site' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pier that I've seen before include "Landing-stage or promenade" , "seaside location" , "Wharf jutting out into water" , "Landing stage; arch support" , "Seaside resort feature" .)