Bread part (5)
I believe the answer is:
crust
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bread part</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that crust is part of bread)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for crust that I've seen before include "Hard knowledge" , "Bit of toast, perhaps" , "Pie covering" , "Earth's outer layer" , "Hard outer coating" .)