Move chaps in hospital department performance (9)
I believe the answer is:
enactment
'performance' is the definition.
(thesaurus)
'move chaps in hospital department' is the wordplay.
'move' becomes 'act' ('act' can be a synonym of 'move'**).
'chaps' becomes 'men' (I've seen this before).
'in' indicates putting letters inside.
'hospital department' becomes 'ent'.
'act'+'men'='actmen'
'actmen' put into 'ent' is 'ENACTMENT'.
(Other definitions for enactment that I've seen before include "Theatrical performance" , "Legal process" , "A played-out" , "Portrayal" , "Command" .)