Provider of daily information given to Secret Service operative (9)
I believe the answer is:
newsagent
'provider of daily' is the definition.
(provider of a daily newspaper)
'information given to secret service operative' is the wordplay.
'information' becomes 'news' (news is a kind of information).
'given to' is a charade indicator (letters next to each other).
'secret service operative' becomes 'agent'.
'news'+'agent'='NEWSAGENT'
(Other definitions for newsagent that I've seen before include "daily shop" , "Seller of papers" , "Shopkeeper selling magazines" , "shop selling rags?" , "Guardian seller?" .)