A PC hero disturbed thief (7)
I believe the answer is:
poacher
'thief' is the definition.
(poacher is a kind of thief)
'a pc hero disturbed' is the wordplay.
'disturbed' indicates anagramming the letters.
'a'+'pc'+'hero'='apchero'
'apchero' is an anagram of 'POACHER'.
(Other definitions for poacher that I've seen before include "Gamekeeper's enemy" , "One at the game" , "Illegal game hunter" , "Pilferer" , "Gamekeeper's foe" .)