Actors point in class (5)
I believe the answer is:
caste
'class' is the definition.
(type of social class)
'actors point' is the wordplay.
'actors' becomes 'cast' (group of actors).
'point' becomes 'e' (compass point).
'cast'+'e'='CASTE'
'in' acts as a link.
(Other definitions for caste that I've seen before include "Hindu determinant of status" , "Level in society" , "Brahmans for instance" , "Social division in India" , "place in society" .)