Seafood needs work after none caught (7)
I believe the answer is:
octopus
'seafood' is the definition.
(octopus is a kind of seafood)
'work after none caught' is the wordplay.
'work' becomes 'opus' (I've seen this before**).
'after' is a charade indicator (letters next to each other).
'none' becomes 'o'.
'caught' becomes 'ct'.
'o'+'ct'='oct'
'opus' put after 'oct' is 'OCTOPUS'.
'needs' is the link.
(Other definitions for octopus that I've seen before include "large, influential organization" , "Sea-creature" , "Mollusc with long tentacles" , "Tentacled marine mollusc" , "Far-reaching organisation" .)