"Tarzan" actor Ron (3)
I believe the answer is:
ely
'tarzan actor ron' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ely that I've seen before include "See" , "'Isle' in Cambridgeshire" , "Cambs. city" , "Cambs cathedral" , "Diocese in Eastern England" .)