Lawless part of Pacific rim, in Alaska (8)
I believe the answer is:
criminal
'lawless' is the definition.
(thesaurus)
'part of pacific rim in alaska' is the wordplay.
'part of' indicates a hidden word.
'CRIMINAL' is hidden within 'pacific rim in alaska'.
(Other definitions for criminal that I've seen before include "Felon, malefactor" , "Lawless, felonious" , "A bad hat" , "Being sought by police" , "An habitual breaker of the law" .)