Crossword Genius

Exclude Newton from farm building (4)

Ross

I believe the answer is:

barn

'farm building' is the definition.
(barn is a kind of farm building)

'exclude newton' is the wordplay.
'exclude' becomes 'bar' (synonyms).
'newton' becomes 'N' (symbol for the scientific unit of force).
'bar'+'n'='BARN'

'from' acts as a link.

(Other definitions for barn that I've seen before include "Farm 4 down" , "Farm storehouse" , "Large shed" , "Large farm building" , "Type of dance or owl" .)

I've seen this clue in the Sydney Morning Herald.
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