Greek island where Odysseus was king (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
ithaca
(Other definitions for ithaca that I've seen before include "In Homeric legend, Odysseus was its king" , "old island" , "Greek island sought by Odysseus" , "Odysseus's home" , "where long boat trip ended" .)