Grain tower (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">grain tower</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for silo that I've seen before include "Grain storage tower" , "Grain storage area" , "Storage space for fodder" , "Tower for making fodder" , "Farm tower" .)
(Other definitions for barn that I've seen before include "Building for farm animals" , "Farm 4 down" , "Outlying farm building" , "Large shed" , "Farm store" .)