Crossword Genius

Feed-bag grain (3)

Ross

I believe the answer is:

oat

(Other definitions for oat that I've seen before include "Basis of porridge" , "Food grain" , "Cereal grass" , "Cereal plant" , "Cereal (singular)" .)

I've seen this clue in the Penny Press.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.