Name given to excellent city (5)
I believe the answer is:
dubai
'city' is the definition.
(I've seen this before)
'name given to excellent' is the wordplay.
'name' becomes 'dub' ().
'given to' says to put letters next to each other.
'excellent' becomes 'ai' (resembles 'Ad', old-fashioned term for excellent).
'dub'+'ai'='DUBAI'
(Other definitions for dubai that I've seen before include "sheikdom?" , "Persian Gulf emirate" , "Middle Eastern destination" , "Gulf emirate and port city" , "Persian Gulf state" .)