Prison appropriate (4)
I believe the answer is:
nick
I believe this clue is a double definition.
'prison' is the first definition.
(slang term for prison)
'appropriate' is the second definition.
(both can be verbs meaning 'steal' or 'take')
(Other definitions for nick that I've seen before include "Cop shop" , "- Faldo, British golfer" , "chip" , "Small boy" , "cooler" .)