Authority contains uprising (8)
I believe the answer is:
sanction
'authority' is the definition.
(thesaurus)
'contains uprising' is the wordplay.
'uprising' is an anagram indicator.
'contains' is an anagram of 'SANCTION'.
(Other definitions for sanction that I've seen before include "Permission or approval as for course of action" , "Support" , "Officially approve" , "Go-ahead" , "Allow; penalty" .)