Italians disguised origins (7)
I believe the answer is:
signori
'italians' is the definition.
(I've seen this before)
'disguised origins' is the wordplay.
'disguised' indicates an anagram.
'origins' with letters rearranged gives 'SIGNORI'.
(Other definitions for signori that I've seen before include "men of Roman stamp?" , "Italian men" , "Italian gents" , "Italians" .)