Crossword Genius

Place to make a note of profit (6)

Ross

I believe the answer is:

margin

I believe this is a double definition.

'place to make a note' is the first definition.
(you might make notes in the margin of a page)

'profit' is the second definition.
(margin is a kind of profit)

'of' acts as a link.

(Other definitions for margin that I've seen before include "Bound" , "Boundary line or the area" , "Blank space around the edge" , "Permissible difference" , "Blank space around a page" .)

I've seen this clue in The Guardian.
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