Tim Saul upset about final syllables (7)

I believe the answer is:

ultimas

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'final syllables' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'tim saul upset about' is the wordplay.
'upset' is an anagram indicator.
'about' indicates putting letters inside.
'saul' with letters rearranged gives 'ulas'.
'tim' placed inside 'ulas' is 'ULTIMAS'.

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I've seen this clue in the Sydney Morning Herald.

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