Ineffective therapist in work at hospital (9)
I believe the answer is:
homeopath
'ineffective therapist' is the definition.
'homeopath' can be an answer for 'therapist' (I've seen this before). I'm not sure about the 'ineffective' bit.
'in work at hospital' is the wordplay.
'in' becomes 'home' ('he's in' can mean 'he's home').
'work' becomes 'op' (common abbreviation for 'opus').
'hospital' becomes 'H' (abbreviation for hospital on maps).
'home'+'op'+'at'+'h'='HOMEOPATH'
Can you help me to learn more?
(Other definitions for homeopath that I've seen before include "Health practitioner" , "one offers treatment" , "Alternative practitioner" , "therapist" , "he treats you, naturally" .)