Crossword Genius

Not gross, but there's a bar on it in Barnet (3)

Ross

I believe the answer is:

net

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

'not gross' is the definition.
('net' is the opposite to 'gross')

'there's a bar on it in barnet' is the wordplay.
'NET' is hidden in amongst the letters.
But, I'm not sure how this is indicated.

'but' acts as a link.

Can you help me to learn more?

(Other definitions for net that I've seen before include "Catch, ensnare" , "Final profit when all overheads have been deducted" , "Trap made from mesh" , "Make" , "Tennis court feature" .)

I've seen this clue in the Evening Standard.
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