Record collection I have found next to curved structure (7)
I believe the answer is:
archive
'record collection' is the definition.
(I've seen this before)
'i have found next to curved structure' is the wordplay.
'i have' becomes 'ive' (contraction of 'I have').
'found next to' says to put letters next to each other.
'curved structure' becomes 'arch' (architectural structure).
'ive' put after 'arch' is 'ARCHIVE'.
(Other definitions for archive that I've seen before include "Document depository" , "Historical collection of documents" , "File away" , "Depository for records and documents" , "Data repository" .)