City does as badly (6)
I believe the answer is:
odessa
'city' is the definition.
(Odessa is an example)
'does as badly' is the wordplay.
'badly' indicates an anagram (letters in the wrong order).
'does'+'as'='doesas'
'doesas' anagrammed gives 'ODESSA'.
(Other definitions for odessa that I've seen before include "Port city of Ukraine" , "Do seas come into Ukrainian city?" , "Seaport" , "Port city on the Black Sea" , "Battleship Potemkin mutiny port" .)