Drink disrupted pool game (5,4)
I believe the answer is:
water polo
'game' is the definition.
(I know that water polo is a type of athletic game)
'drink disrupted pool' is the wordplay.
'drink' becomes 'water' (I've seen this in another clue).
'disrupted' indicates anagramming the letters.
'pool' is an anagram of 'polo'.
'water'+'polo'='WATER-POLO'
(Other definitions for water polo that I've seen before include "event" , "Swimming pool game" , "Game played by tams of swimmers with large ball (5.4)" , "Seven-a-side game involving swimming" , "Game played by swimming teams with large ball" .)