People divided opinion at the end — are maybe right about society (7)
I believe the answer is:
koreans
'people divided' is the definition.
(I know that Korean is the class of people from Korea)
'at the end are maybe right about society' is the wordplay.
'at' means one lot of letters go next to another.
'the end are maybe' becomes 'rean' (I am not sure about this - if you are sure you should believe this answer much more).
'right' becomes 'OK' (OK can mean right or appropriate).
'about' says the letters should be written in reverse.
'society' becomes 's' (common abbreviation in names of organisations).
'ok' back-to-front is 'ko'.
'rean' put after 'ko' is 'korean'.
'korean'+'s'='KOREANS'
'opinion' acts as a link.
This may not be correct. It may belong to another bit of the clue.
Can you help me to learn more?
(Another definition for koreans that I've seen is " People from Seoul?".)