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 anagramming the letters.
'origins' is an anagram of 'SIGNORI'.
(Other definitions for signori that I've seen before include "men of Roman stamp?" , "Italian men" , "Italian gents" , "Italians" .)