Port visited by Commodore Perry (8)
I believe the answer is:
yokohama
'port visited by commodore perry' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for yokohama that I've seen before include "Major Japanese port" , "Second largest city of Japan" , "Japan's most populated city" , "Hook Maya over there in Japan" , "Japanese city and port" .)