Haul up fish, we're told (5)
I believe the answer is:
raise
'haul up' is the definition.
(I've seen this before)
'fish we're told' is the wordplay.
'fish' becomes 'rays' (I've seen this before).
'we're told' shows a homophone (sound like).
'rays' is a homophone of 'RAISE'.
(Other definitions for raise that I've seen before include "Lift - increase" , "Erect; grow" , "Increase; elevate" , "cairn" , "Bring up, rear" .)