Crowd disorder in which Henry's knocked out Mike (6)
I believe the answer is:
huddle
This clue could be a double definition.
'crowd' is the first definition.
(I've seen this before)
'disorder in which henry's knocked out mike' is the second definition.
'huddle' can be an answer for 'disorder' (thesaurus). I am not certain of the remainder of the definition.
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" , "Crowd together in small space" , "Gather together" , "Get together (to confer)" , "Close mass, secret conference" .)