City match expecting many away supporters? (5)
I believe the answer is:
derby
This clue is a double definition.
'city' is the first definition.
(I've seen this before)
'match expecting many away supporters?' is the second definition.
(type of match between traditional rivals)
(Other definitions for derby that I've seen before include "Epsom horse race" , "Commotion" , "Midlands city" , "Race run at Epsom" , "American bowler" .)