Rome, for example, is excellent (7)
I believe the answer is:
capital
I believe this is a double definition.
'rome for example' is the first definition.
(rome is a kind of capital)
'excellent' is the second definition.
(I've seen this before)
'is' acts as a link.
(Other definitions for capital that I've seen before include "Major city - investment - great!" , "A great city - that's fine" , "Excellent - assets - first city" , "Money available to produce interest" , "Finance - excellent!" .)