Architectural style obtained here in Rome (6)
I believe the answer is:
gothic
'architectural style' is the definition.
(Gothic is an example)
'obtained here in rome' is the wordplay.
'obtained' becomes 'got' ('get' can be a synonym of 'obtain').
'here in rome' becomes 'hic' ('here' in Latin).
'got'+'hic'='GOTHIC'
(Other definitions for gothic that I've seen before include "Style of architecture and gloomy books" , "See 6 ac" , "Style between Romanesque and Classical" , "Style of mediaeval architecture" , "Barbarous" .)