Pamper rising Society clique (6)
I believe the answer is:
cosset
'pamper' is the definition.
('cosset' can be a synonym of 'pamper')
'rising society clique' is the wordplay.
'rising' is a reversal indicator (going up in a down clue).
'society' becomes 'soc'.
'clique' becomes 'set' (I've seen this before).
'soc' back-to-front is 'cos'.
'cos'+'set'='COSSET'
(Other definitions for cosset that I've seen before include "Fondle" , "Pamper, mollycoddle" , "pet" , "Care for overindulgently" , "Treat overindulgently" .)