Lawless section of Pacific Rim, in Alaska (8)
I believe the answer is:
criminal
'lawless' is the definition.
(thesaurus)
'section of pacific rim in alaska' is the wordplay.
'section of' indicates a hidden word.
'CRIMINAL' can be found hidden inside 'pacific rim in alaska'.
(Other definitions for criminal that I've seen before include "Mafioso, possibly" , "Illegal - wicked" , "Person who breaks the law for a living" , "Offender" , "Lawless, felonious" .)