Harry's pal (3)
I believe the answer is:
ron
'harry's pal' is the definition.
(Harry Potter is friends with Ron Weasley)
This is the entire clue.
(Other definitions for ron that I've seen before include "Short man's name" , "Shortened man's name" , "Man" , "L. - Hubbard, US sci-fi writer" , "Boy's name (abbr)" .)