One providing yarns in court left German over dispute (4-6)

I believe the answer is:

wool-grower

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'one providing yarns' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'court left german over dispute' is the wordplay.
'court left' becomes 'wool' (I can't justify this - if you can you should believe this answer much more).
'german' becomes 'ger' (abbreviation).
'over' is an insertion indicator.
'dispute' becomes 'row' (row is a kind of dispute).
'ger' enclosing 'row' is 'grower'.
'wool'+'grower'='WOOL-GROWER'

'in' is the link.

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I've seen this clue in The Independent.

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