Happening to break kinky women's toys often par for the course? (7-3)

'often par for the course?' is the definition.
(common golf par)

'happening to break kinky women's toys' is the wordplay.
'happening' becomes 'event' (I've seen this before).
'to break' is an insertion indicator.
'kinky' is an anagram indicator.
'women' becomes 'w'.
'w'+'toys'='wtoys'
'wtoys' anagrammed gives 'sytwo'.
'event' put into 'sytwo' is 'SEVENTY-TWO'.