Disciplined hospital employee (7)
I believe the answer is:
orderly
This clue is a double definition.
'disciplined' is the first definition.
(thesaurus)
'hospital employee' is the second definition.
(I've seen this in another clue)
(Other definitions for orderly that I've seen before include "Well-regulated" , "Junior Army rank" , "Neat, tidy; soldier" , "Regular - soldier" , "Officer's assistant" .)