Servant present finally after so long in Rome (5)
I believe the answer is:
valet
'servant' is the definition.
(I know that valet is a type of manservant)
'present finally after so long in rome' is the wordplay.
'finally' indicates one should take the final letters.
'after' means one lot of letters go next to another.
'so long in rome' becomes 'vale' ('vale' means farewell in Latin).
The last letter of 'present' is 't'.
't' after 'vale' is 'VALET'.
(Other definitions for valet that I've seen before include "Gentleman's attendant" , "Personal male assistant" , "Man's personal attendant" , "Personal servant" , "Jeeves?" .)