Game frequently interrupts society dance (8)
I believe the answer is:
softball
'game' is the definition.
(softball is a kind of game)
'frequently interrupts society dance' is the wordplay.
'frequently' becomes 'oft' (I've seen this before).
'interrupts' is an insertion indicator.
'society' becomes 's' (common abbreviation in names of organisations).
'dance' becomes 'ball' (ball is a kind of dance).
's'+'ball'='sball'
'oft' put within 'sball' is 'SOFTBALL'.
(Other definitions for softball that I've seen before include "Junior variant of baseball" , "played by young American" , "sport!"" , "game" .)