Dub hospital department "doctor-lite" (7)
I believe the answer is:
entitle
'dub' is the definition.
(thesaurus)
'hospital department doctor-lite' is the wordplay.
'hospital department' becomes 'ent'.
'doctor' indicates anagramming the letters.
'lite' with letters rearranged gives 'itle'.
'ent'+'itle'='ENTITLE'
(Other definitions for entitle that I've seen before include "Furnish with a right or claim" , "Give a right or authority to" , "Give one the right - name" , "Name, authorise" , "Call; permit" .)