Produce a whip (4)
I believe the answer is:
crop
I believe this is a double definition.
'produce' is the first definition.
(thesaurus)
'a whip' is the second definition.
(thesaurus)
(Other definitions for crop that I've seen before include "Season's produce" , "Harvest or kind of whip" , "Yield -- trim" , "Set" , "Reduce" .)