Chap occupying a hospital ward gets fixed (9)
I believe the answer is:
permanent
'fixed' is the definition.
(I've seen this before)
'chap occupying a hospital ward' is the wordplay.
'chap' becomes 'man' (chap can mean a man).
'occupying' means one lot of letters goes inside another (inserted letters occupy or enter the word).
'a' becomes 'per' (eg 'one a day' means 'one per day').
'hospital ward' becomes 'ENT' (Ear, Nose and Throat department).
'per'+'ent'='perent'
'man' inserted into 'perent' is 'PERMANENT'.
'gets' acts as a link.
(Other definitions for permanent that I've seen before include "full-time" , "Lasting for ever" , "Constant" , "Lasting, unchangeable" , "Lasting, durable" .)