A man from Bury St. Edmunds (3)
I believe the answer is:
ted
'a man' is the definition.
(Ted is a man's name)
'from bury st edmunds' is the wordplay.
'from' says the answer is hidden in the clue.
'TED' is hidden in the letters of 'bury st edmunds'.
(Other definitions for ted that I've seen before include "Heath or Danson?" , "Chap" , "used to make hay" , "Edward (dim.)" , "Hang out to dry" .)