Classic pie crust ingredient (4)
I believe the answer is:
lard
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">classic pie crust ingredient</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lard that I've seen before include "Soft white semisolid fat" , "stuff with bacon" , "Hard cooking fat" , "White cooking fat" , "Pig fat used in cooking" .)