Fork for duck? (4)
I believe the answer is:
bend
I believe this clue is a double definition.
'fork' is the first definition.
(thesaurus)
'duck?' is the second definition.
(thesaurus)
'for' acts as a link.
(Other definitions for bend that I've seen before include "Shape into a curve" , "Lean forward" , "It may be sinister" , "Stoop; (heraldic) stripe" , "Crook" .)