Buzz Aldrin's real first name (5)
I believe the answer is:
edwin
'buzz aldrin's real first name' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for edwin that I've seen before include "Sir - Landseer, artist" , "boy" , "Dickens's Drood" , "Man" , "Fellow" .)