Place in Italy to change planes (6)
I believe the answer is:
naples
'place in italy' is the definition.
(I know that Naples is a city)
'change planes' is the wordplay.
'change' indicates an anagram.
'planes' is an anagram of 'NAPLES'.
'to' acts as a link.
(Other definitions for naples that I've seen before include "Planes (anag) - somewhere in Italy" , "European city" , "Italian port blockaded by Nelson" , "City near Mt. Vesuvius" , "Port near to Vesuvius" .)