Coach in hospital unit gets poor treatment (5)
I believe the answer is:
abuse
'poor treatment' is the definition.
(I've seen this before)
'coach in hospital unit' is the wordplay.
'coach' becomes 'bus' (synonyms).
'in' indicates putting letters inside.
'hospital unit' becomes 'ae' (I can't justify this - if you can you should believe this answer much more).
'bus' put within 'ae' is 'ABUSE'.
'gets' acts as a link.
Can you help me to learn more?
(Other definitions for abuse that I've seen before include "Deceit" , "Vituperation" , "Exploit" , "Insulting language" , "Treat with cruelty" .)