Tower for grain (4)
I believe the answer is:
silo
(Other definitions for silo that I've seen before include "Storage pit, tower" , "Farm tower" , "Storage unit for animal feed" , "Grain storage area" , "Missile launcher; farm store" .)
I believe the answer is:
silo
(Other definitions for silo that I've seen before include "Storage pit, tower" , "Farm tower" , "Storage unit for animal feed" , "Grain storage area" , "Missile launcher; farm store" .)