Affected with disease, fifty uprose wildly (7)

I believe the answer is:

leprous

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'affected with disease' is the definition.
I can't judge whether this defines the answer.

'fifty uprose wildly' is the wordplay.
'fifty' becomes 'l' (Roman numeral).
'wildly' indicates anagramming the letters.
'uprose' with letters rearranged gives 'eprous'.
'l'+'eprous'='LEPROUS'

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

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