An Italian's way with a girl (5)
I believe the answer is:
roman
'an italian's' is the definition.
(someone from Rome)
'way with a girl' is the wordplay.
'way' becomes 'n' (Compass direction - North).
'with' says to put letters next to each other.
'a girl' becomes 'roma' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'n' after 'roma' is 'ROMAN'.
Can you help me to learn more?
(Other definitions for roman that I've seen before include "Non-italic (type)" , "eg Brutus" , "From Italy's capital" , "(Of a nose) high-bridged" , "Locking device" .)