Light pastry (5)
I believe the answer is:
choux
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">light pastry</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for choux that I've seen before include "requirement to make profiteroles" , "Kind of pastry used for eclairs" , "Light, rich pastry" , "Light type of pastry" .)