Crossword Genius

Overall dividend for a fisherman? (3,6)

Ross

I believe the answer is:

net profit

I'm a little stuck... Click here to teach me more about this clue!

'overall dividend' is the definition.
'net profit' can be an answer for 'dividend' (thesaurus). I'm unsure of the 'overall' bit.

'for a fisherman?' is the wordplay.
I cannot quite see how this works, but
an anagram of 'for' is 'rof' which is within the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for net profit that I've seen before include "Excess of sales over costs for potent fir" , "Earnings after all deductions" , "return from business" , "What's finally made" , "Actual money to be made" .)

I've seen this clue in The Daily Express.
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