Caught fish and made a clear profit (6)
I believe the answer is:
netted
This clue could be a double definition.
'caught fish' is the first definition.
'netted' can be an answer for 'caught' (netting is a kind of catching). I'm not certain of the 'fish' bit.
'made a clear profit' is the second definition.
(I've seen this before)
'and' is the link.
Can you help me to learn more?
(Other definitions for netted that I've seen before include "Caught fish, perhaps, and made clear profit" , "Obtained as clear profit" , "caught in the wet?" , "As a whole" , "Caught (like butterfly)" .)