Cotton Bowl city (6)
I believe the answer is:
dallas
'cotton bowl city' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dallas that I've seen before include "tragic city" , "assassination site" , "All sad at the disappearance of the long-running soap opera?" , "US city where JFK was assassinated" , "Texan commercial city" .)