Played pool game (4)
I believe the answer is:
polo
'game' is the definition.
(polo is a kind of game)
'played pool' is the wordplay.
'played' indicates anagramming the letters.
'pool' is an anagram of 'POLO'.
(Other definitions for polo that I've seen before include "Game played on horseback or in pool" , "Pool (anag.)" , "Hockey on horseback" , "Venetian 19 to Asia, servant to Kublai Khan" , "explorer of the thirteenth century" .)