African city medic has alias (5)
I believe the answer is:
dakar
'african city' is the definition.
(capital of Senegal)
'medic has alias' is the wordplay.
'medic' becomes 'dr' (abbreviation for doctor).
'has' is an insertion indicator.
'alias' becomes 'aka' (synonyms).
'dr' placed around 'aka' is 'DAKAR'.
(Other definitions for dakar that I've seen before include "place in Africa" , "Capital of Senegal" , "Senegal's capital" .)