It's not altruistic to market seafood, we hear (7)
I believe the answer is:
selfish
'it's not altruistic' is the definition.
(I've seen this in another clue)
'market seafood we hear' is the wordplay.
I cannot really understand how this works, but
'seafood' could be 'fish' (fish is a kind of seafood) and 'fish' is found within the answer.
The remaining letters 'sel' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'to' acts as a link.
Can you help me to learn more?
(Other definitions for selfish that I've seen before include "Ungenerous" , "Egotistical" , "Egocentric - greedy" , "Mercenary" , "for personal gain" .)