Devious Roman made notes (9)
I believe the answer is:
memoranda
'notes' is the definition.
(memorandum is a kind of note)
'devious roman made' is the wordplay.
'devious' indicates an anagram.
'roman'+'made'='romanmade'
'romanmade' anagrammed gives 'MEMORANDA'.
(Other definitions for memoranda that I've seen before include "official minutes" , "Communications" , "Notes recorded for future use" , "Records" , "Written messages or notes" .)