Cary, in reality, mostly gets Victor to replace book of records (8)
I believe the answer is:
archival
This might be a double definition.
'cary in reality' is the first definition.
(actor Cary Grant was born Archibald Alec Leach)
'of records' is the second definition.
(relating to an archive, a collection for records)
'mostly gets victor to replace book' is the link.
I am not very happy about this link. Some or all of it may belong to one of the definitions.
Can you help me to learn more?
(Other definitions for archival that I've seen before include "describing record collection" , "records?" , "Like recordings" , "Record-keeping" .)