Island where Minos ruled (5)
I believe the answer is:
'island where minos ruled' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for crete that I've seen before include "Knossos island" , "Greek territory" , "Greek island, site of the Minoan civilisation" , "Greek island, capital Heraklion" , "Largest Greek island" .)