Four in new search for records (8)
I believe the answer is:
archives
'for records' is the definition.
(an archive is a collection of records)
'four in new search' is the wordplay.
'four' becomes 'IV' (Roman numerals).
'in' indicates putting letters inside.
'new' indicates an anagram.
'search' with letters rearranged gives 'arches'.
'iv' put inside 'arches' is 'ARCHIVES'.
(Other definitions for archives that I've seen before include "Collection of records of organisation" , "Collections of old documents" , "Public records" , "Chronicles" , "Historical records of an institution" .)