Islander's rum and raisin (9)
I believe the answer is:
sardinian
'islander's' is the definition.
(I've seen this before)
'rum and raisin' is the wordplay.
'rum' is an anagram indicator (rum can mean strange or unusual).
'and'+'raisin'='andraisin'
'andraisin' is an anagram of 'SARDINIAN'.
(Other definitions for sardinian that I've seen before include "Native of the Med's second largest island" , "Islander" , "from an Italian island" .)