Reprocessed argentum causes bickering (8)

I believe the answer is:

argument

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'bickering' is the definition.
(thesaurus)

'reprocessed argentum' is the wordplay.
'argentum' anagrams to 'ARGUMENT'.
But, I'm not sure how the anagram is indicated.

'causes' acts as a link.

Can you help me to learn more?

(Other definitions for argument that I've seen before include "Tiff" , "Debate or dispute" , "Discussion - line of proof" , "Debate - disagreement" , "Heated disagreement" .)

I've seen this clue in The Sun.

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