Run arts centre, deferring to extremely devoted crowd (6)
I believe the answer is:
huddle
'crowd' is the definition.
(I know that huddle is a type of crowd)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for huddle that I've seen before include "Crowd together for warmth - gathering of players to receive instructions" , "Close mass, secret conference" , "Crowd together in small space" , "Draw together" , "Come closely together" .)