Indian corn (5)
I believe the answer is:
maize
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">indian corn</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for maize that I've seen before include "plant with ears" , "Tall cereal plant bearing grain on large pods" , "Cereal grass producing corncobs" , "Plant producing sweetcorn" , "Oil producer" .)