Crossword Genius

Being unyielding, a point leads to a quarrel (5)

Ross

I believe the answer is:

stiff

'being unyielding' is the definition.
(I've seen this before)

'a point leads to a quarrel' is the wordplay.
'a point' becomes 'S' (South).
'leads to' is a charade indicator (letters next to each other).
'a quarrel' becomes 'tiff' (informal term for an argument).
's'+'tiff'='STIFF'

(Other definitions for stiff that I've seen before include "Difficult" , "One dead" , "Awkward" , "cheat" , "Severe - conventional - dead body" .)

I've seen this clue in The Globe and Mail.
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