Islander in a sort of trance (6)
I believe the answer is:
cretan
'islander' is the definition.
(someone from Crete)
'sort of trance' is the wordplay.
'sort of' indicates anagramming the letters.
'trance' is an anagram of 'CRETAN'.
'in a' is the link.
(Other definitions for cretan that I've seen before include "A Mediterranean islander" , "One from largest Greek isle" , "Of a Greek island, centre of the Minoan civilisation" , "From Greece" , "Island nationality of citizen of Heraklion" .)