Sport happening to irk (4,2)

I believe the answer is:

wear on

'irk' is the definition.
(thesaurus)

'sport happening' is the wordplay.
'sport' becomes 'wear' (sport can mean to wear or display on one's person).
'happening' becomes 'on'.
'wear'+'on'='WEAR ON'

'to' acts as a link.

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

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