Chocolate filling (7)
I believe the answer is:
praline
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">chocolate filling</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for praline that I've seen before include "Sweet made with butter and pecans" , "Substance made of nuts boiled in sugar, used to fill chocolates" , "Sweet stuff" , "French confection" , "Confection made with crushed nuts" .)