Restoration we learn about (7)
I believe the answer is:
renewal
'restoration' is the definition.
(synonyms)
'we learn about' is the wordplay.
'about' is an anagram indicator.
'we'+'learn'='welearn'
'welearn' anagrammed gives 'RENEWAL'.
(Other definitions for renewal that I've seen before include "Resumption, re-establishment" , "one of the library's services" , "Renovation, revival" , "Act of refreshing" , "Process of extending a subscription or licence" .)