Crowd downcast with no action outside (5)
I believe the answer is:
press
'crowd' is the definition.
(press is a kind of crowd)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for press that I've seen before include "needed to avoid crooked racket" , "flock" , "Smooth" , "Crush; iron" , "Produce record" .)