Systematic hospital attendant (7)
I believe the answer is:
orderly
I believe this clue is a double definition.
'systematic' is the first definition.
('orderly' can be a synonym of 'systematic')
'hospital attendant' is the second definition.
(I've seen this before)
(Other definitions for orderly that I've seen before include "Systematically, not haphazard" , "Methodical; hospital worker" , "Hospital attendant - neat" , "Hospital or military attendant" , "Well-behaved -- soldier attending to a superior officer" .)