People in a rush? (4)
I believe the answer is:
race
I believe this clue is a double definition.
'people' is the first definition.
(people can mean a national group or race)
'a rush?' is the second definition.
(I know that rush can be written as race)
'in' is the link.
(Other definitions for race that I've seen before include "Speed competition" , "Contest; zoom" , "Move fast" , "People; run" , "Contest; nation" .)