Systematic hospital worker (7)
I believe the answer is:
orderly
I believe this is a double definition.
'systematic' is the first definition.
('orderly' can be a synonym of 'systematic')
'hospital worker' is the second definition.
(I've seen this before)
(Other definitions for orderly that I've seen before include "Well-regulated" , "Systematically, not haphazard" , "He should leave the ward neat" , "An officer's servant, tidy chap" , "Junior Army rank" .)