Crowd disorder in which Henry's knocked out Mike (6)
I believe the answer is:
huddle
This might 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'm not sure about 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" .)