Take in the harvest (4)
I believe the answer is:
reap
'take in the harvest' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reap that I've seen before include "''As you sow, so you . . . .'' (4)" , "'As you sow, so shall you . . . .'" , "Cut or gather (a harvest)" , "Save harvest, glean" , "Glean or cut as harvest" .)