Crossword Genius

Uncompromising business (4)

Ross

I believe the answer is:

firm

This clue is a double definition.

'uncompromising' is the first definition.
(thesaurus)

'business' is the second definition.
(I know that firm is a type of business)

(Other definitions for firm that I've seen before include "Solid; secure" , "Company; steady" , "corporation?" , "Unflinching" , "Well-established - business" .)

I've seen this clue in the Evening Standard.
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