Game in which answers are acted out (8)
I believe the answer is:
charades
'game in which answers are acted out' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for charades that I've seen before include "Miming parlour game" , "Games like this" , "Miming games" , "Game in which answers are acted out" , "Party guessing game" .)