Train hospital department these days (9)
I believe the answer is:
entourage
'train' is the definition.
(a train of people)
'hospital department these days' is the wordplay.
'hospital department' becomes 'ENT' (abbreviation for Ear, Nose and Throat department).
'these days' becomes 'our age' (the age we live in).
'ent'+'ourage'='ENTOURAGE'
(Other definitions for entourage that I've seen before include "Ego nature found in accompanying group" , "Support team" , "Staff" , "The people accompanying a VIP" , "Following" .)