Aim of Bill’s deed followed by chaps in hospital department (9)
I believe the answer is:
enactment
'aim of bill's' is the definition.
'enactment' can be an answer for 'bill's' (thesaurus). I am not certain of the 'aim of' bit.
'deed followed by chaps in hospital department' is the wordplay.
'deed' becomes 'act' (an action).
'followed by' says to put letters next to each other.
'chaps' becomes 'men' (chap can mean a man).
'in' indicates putting letters inside.
'hospital department' becomes 'ENT' (Ear, Nose and Throat department).
'act'+'men'='actmen'
'actmen' inserted inside 'ent' is 'ENACTMENT'.
Can you help me to learn more?
(Other definitions for enactment that I've seen before include "Theatrical performance" , "Legal process" , "Command" , "that needs approval of those in house" , "Law that's been passed" .)