Some outflank Arabs in city (6)
I believe the answer is:
ankara
'city' is the definition.
(Ankara is an example)
'some outflank arabs in' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ANKARA' is hidden within 'outflank arabs in'.
(Other definitions for ankara that I've seen before include "Turkey's capital" , "Capital of 8 across" , "European capital" , "Capital of Turkey" , "Capital established by Ataturk" .)