Strange origins for address to Italian guys (7)

I believe the answer is:

signori

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'address to italian guys' is the definition.
I can't judge whether this definition defines the answer.

'strange origins' is the wordplay.
'strange' indicates anagramming the letters.
'origins' is an anagram of 'SIGNORI'.

'for' is the link.

Can you help me to learn more?

(Other definitions for signori that I've seen before include "Italian men" , "Italian gents" , "Italians" , "men of Roman stamp?" .)

I've seen this clue in the Sydney Morning Herald.

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