Final result is ill-use (5)

I believe the answer is:

issue

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'final result' is the definition.
'issue' can be an answer for 'result' (I've seen this before). I am unsure of the 'final' bit.

'is ill-use' is the wordplay.
'ill' is an anagram indicator.
'use' with letters rearranged gives 'sue'.
'is'+'sue'='ISSUE'

Can you help me to learn more?

(Other definitions for issue that I've seen before include "Matter of contention" , "Matter for discussion" , "hot potato?" , "Emanate" , "Children; topic for debate" .)

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

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