Issue resolved by a chap from Wagga Wagga (6)

I believe the answer is:

aussie

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'chap from wagga wagga' is the definition.
I can't judge whether this definition defines the answer.

'issue resolved by a' is the wordplay.
'resolved' indicates anagramming the letters.
'by' is a charade indicator (letters next to each other).
'issue' anagrammed gives 'ussie'.
'ussie' put after 'a' is 'AUSSIE'.

Can you help me to learn more?

(Other definitions for aussie that I've seen before include "Australian (colloq.)" , "Someone from Sydney? (slang)" , "inhabitant of Brisbane" , "Antipodean native, informally" , "Digger" .)

I've seen this clue in The Times.

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