Gather up crops
I believe the answer is:
reap
'gather up crops' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reap that I've seen before include "Glean or cut as harvest" , "Gather 23dn" , "Harvest, garner" , "Cut the corn" , "'As you sow, so shall you . . . .'" .)