Moral about point being cultural (6)
I believe the answer is:
ethnic
'cultural' is the definition.
(synonyms)
'moral about point' is the wordplay.
'moral' becomes 'ethic' (I've seen this before).
'about' is an insertion indicator.
'point' becomes 'N' (N is an example).
'ethic' placed around 'n' is 'ETHNIC'.
'being' acts as a link.
(Other definitions for ethnic that I've seen before include "To do with racial group or culture" , "Relating to cultural groups" , "Relating to a particular racial group" , "Relating to a particular cultural group" , "Culturally-based" .)