Cultural surroundings (6)
I believe the answer is:
milieu
'cultural surroundings' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for milieu that I've seen before include "(Social) setting" , "Environmental condition, surrounding" , "'Surroundings, setting (6)'" , "Environment - setting" , "Social environment or set of surroundings" .)