Island in south without warmth (6)
I believe the answer is:
sicily
'island' is the definition.
(I know that Sicily is a island)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for sicily that I've seen before include "Largest Mediterranean island" , "Large Mediterranean island off Italy" , "Etna's island" , "Palermo's island" , "Large Italian island" .)