Resort a genuine winner at first for island (3,6)
I believe the answer is:
new guinea
'island' is the definition.
(New Guinea is an example)
'resort a genuine winner at first' is the wordplay.
'resort' indicates an anagram.
'at first' says to take the initial letters.
The initial letter of 'winner' is 'w'.
'a'+'genuine'+'w'='agenuinew'
'agenuinew' is an anagram of 'NEW GUINEA'.
'for' is the link.
(Other definitions for new guinea that I've seen before include "divided island" , "Papua - - - -" , "Island in the Western Pacific" , "Pacific island, the world's second largest" .)