Catch criticism faced by part of hospital (6)
I believe the answer is:
entrap
'catch' is the definition.
(entrapping is a kind of catching)
'criticism faced by part of hospital' is the wordplay.
'criticism' becomes 'rap' (rap is a kind of criticism).
'faced by' says to put letters next to each other.
'part of hospital' becomes 'ent' (I've seen this in other clues).
'rap' put after 'ent' is 'ENTRAP'.
(Other definitions for entrap that I've seen before include "Deceive -- lead on" , "Snare, trick" , "Lure into wrongdoing in order to arrest" , "Catch - frame" , "Ensnare, catch" .)