City player coming off, according to commentator (6)
I believe the answer is:
exeter
'city' is the definition.
(exeter is a city)
'player coming off according to commentator' is the wordplay.
'player coming off' becomes 'exiter' (actor or player exiting the stage).
'according to commentator' shows a homophone (sound like) (how it might sound if delivered by a commentator).
'exiter' sounds like 'EXETER'.
(Other definitions for exeter that I've seen before include "Devon university city" , "See" , "South-western English city" , "Devonshire city" , "South-west English city" .)