Legendary king (5)
I believe the answer is:
midas
'legendary king' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for midas that I've seen before include "Legendary king with golden touch" , "Phrygian king" , "Mythical king who had the power to turn everything to gold" , "One with a golden touch" , "Golden-touch king" .)