Rep’s foul-up treated as deliberate (10)

I believe the answer is:

purposeful

'deliberate' is the definition.
(thesaurus)

'rep's foul-up treated' is the wordplay.
'treated' indicates anagramming the letters.
'reps'+'foul'+'up'='repsfoulup'
'repsfoulup' anagrammed gives 'PURPOSEFUL'.

'as' is the link.

(Another definition for purposeful that I've seen is " Intentional".)

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

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