Role for Jay Silverheels (5)
I believe the answer is:
tonto
'role for jay silverheels' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tonto that I've seen before include "Lone Ranger's scout" , "Western companion" , "Lone Ranger and - -" , "The Lone Ranger's companion" , "Faithful companion" .)