Porridge grain (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">porridge grain</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 oat that I've seen before include "Cereal grass" , "Cereal plant" , "Food grain" , "Cereal (singular)" , "Basis of porridge" .)
(Other definitions for oats that I've seen before include "Porridge mix" , "Basis of porridge" , "Grains or porridge" , "Sow wild ones in disreputable youth" , "Cereal plants" .)