US drug agent hiding up in Scranton (4)
I believe the answer is:
narc
'us drug agent' is the definition.
I can't tell whether this defines the answer.
'hiding up in scranton' is the wordplay.
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'hiding' indicates a hidden word.
'cran' is hidden in the letters of 'in scranton'.
'cran' in reverse letter order is 'NARC'.
Can you help me to learn more?
(Other definitions for narc that I've seen before include "One on drugs squad" , "Drugs officer" , "Agent dealing with Charlie" , "Drugs agent (US)" , "member of drug squad" .)