Crossword Genius

Romantic piece of Italian, by Jupiter! (5)

Ross

I believe the answer is:

roman

I'm a little stuck... Click here to teach me more about this clue!

'romantic' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

'piece of italian by jupiter' is the wordplay.
'piece' becomes 'r' (abbreviation for Rook).
'of' becomes 'o''.
'italian by jupiter' becomes 'man' (I can't justify this - if you can you should give a lot more credence to this answer).
'r'+'o'+'man'='ROMAN'

Can you help me to learn more?

(Other definitions for roman that I've seen before include "Like a type" , "Upright form of type" , "Sort of face" , "Manor (anag.)" , "One like Julius Caesar" .)

I've seen this clue in the Evening Standard.
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