Starchy cereal (4)
I believe the answer is:
sago
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">starchy cereal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sago that I've seen before include "Palm cereal" , "Powdery starchy food" , "Edible palm starch" , "Edible powdery starch" , "Powdery starch from a palm" .)