King in Camelot (6)
I believe the answer is:
arthur
'king in camelot' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for arthur that I've seen before include "See 25" , "Camelot's king" , "Old king" , "Sir --- Conan Doyle" , "Husband of Guinevere" .)