Actors get a point at a game (7)
I believe the answer is:
canasta
'game' is the definition.
(canasta is a kind of game)
'actors get a point at a' is the wordplay.
'actors' becomes 'cast' (I've seen this before).
'get' indicates putting letters inside.
'point' becomes 'n' (N is an example**).
'at' says to put letters next to each other.
'a'+'n'='an'
'cast' placed around 'an' is 'canast'.
'canast'+'a'='CANASTA'
(Other definitions for canasta that I've seen before include "Card game resembling rummy" , "Card game at a scan" , "Form of rummy using two decks of cards and four jokers" , "Can a staff cook stomach game?" , "Rummy-like card-game" .)