Grey matter - brown or white sliced food? (4)

I believe the answer is:

loaf

(Other definitions for loaf that I've seen before include "veg out" , "cottage?" , "Quantity of bread" , "Bread unit" , "Portion of bread" .)

I've seen this clue in The Guardian.

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.