Storage facility (4)
'storage facility' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for warehouse that I've seen before include "Depository" , "Large retail store" , "Storage depot" .)
'storage facility' is the definition.
(I know that silo is a type of warehouse)
This is the entire clue.
(Other definitions for silo that I've seen before include "Tower used for storing fodder" , "Tower for storing grain" , "Tower for making fodder" , "Launch site" , "Underground chamber for a missile" .)