Well-regulated hospital worker (7)
I believe the answer is:
orderly
This clue is a double definition.
'well-regulated' is the first definition.
(I've seen this before)
'hospital worker' is the second definition.
(I've seen this before)
(Other definitions for orderly that I've seen before include "Well-behaved; hospital worker" , "Officer's assistant" , "Hospital or military attendant" , "Neatly arranged; hospital attendant" , "Regular - neat" .)