"Superman" star (5)
I believe the answer is:
reeve
'superman star' 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 "Old English magistrate or bailiff" , "High official" , "Chief magistrate of a district" , "Medieval official - pass rope through an eye" , "One of Chaucer's Canterbury pilgrims" .)