Priest nice to troubled hotel worker (12)
I believe the answer is:
receptionist
'hotel worker' is the definition.
(hotels often employ receptionists)
'priest nice to troubled' is the wordplay.
'troubled' indicates anagramming the letters.
'priest'+'nice'+'to'='priestniceto'
'priestniceto' is an anagram of 'RECEPTIONIST'.
(Other definitions for receptionist that I've seen before include "Hotel employee" , "Person on the front desk" , "Meeter and greeter" , "One on front desk" , "Front desk worker" .)