Reported location of fish (6)
I believe the answer is:
plaice
'fish' is the definition.
(plaice is a kind of fish)
'reported location' is the wordplay.
'reported' indicates a 'sounds like' (homophone) clue.
'location' becomes 'place' (a location is a place).
'place' is a homophone of 'PLAICE'.
'of' acts as a link.
(Other definitions for plaice that I've seen before include "Location of the fish" , "Flatfish; sounds like put" , "Tasty flatfish I place here" , "The fish sounds as if it hits the spot" , "A fish; sounds like put" .)