Quarrel with one jeweller (7)
I believe the answer is:
tiffany
'jeweller' is the definition.
(Tiffany and Co. is an American jewelry company)
'quarrel with one' is the wordplay.
'quarrel' becomes 'tiff' (informal term for an argument).
'with' means one lot of letters go next to another.
'one' becomes 'any' (any one).
'tiff'+'any'='TIFFANY'
(Other definitions for tiffany that I've seen before include "Transparent" , "gauzy fabric" , "fine fabric" , "like a sort of glass" , "Girl's name - New York jeweller" .)