Superman actor (5)
I believe the answer is:
reeve
'superman actor' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reeve that I've seen before include "magistrate of long ago" , "Chief magistrate of a district" , "Pass the end of a rope through the bailiff" , "Old chief magistrate" , "Anglo-Saxon magistrate - female bird - pass (a rope) through a hole" .)