Red ___ (area of a football field) (4)
I believe the answer is:
zone
(Other definitions for zone that I've seen before include "Marked area" , "Region; time area" , "Area; belt" , "Region with particular characteristics" , "District, area" .)
I believe the answer is:
zone
(Other definitions for zone that I've seen before include "Marked area" , "Region; time area" , "Area; belt" , "Region with particular characteristics" , "District, area" .)