Man from Nimble Nook (3)
I believe the answer is:
len
'man' is the definition.
(I've seen this in other clues)
'from nimble nook' is the wordplay.
'from' indicates a hidden word.
'LEN'' is hidden within 'nimble nook'.
(Other definitions for len that I've seen before include "- - Hutton, cricketer" , "-- Deighton, author" , "Boy" , "Leonard (dim.)" , "Sir - - Hutton" .)