Sweet cake or tart (5)
I believe the answer is:
torte
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">sweet cake</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">tart</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for torte that I've seen before include "Sweet cake (from Ger.)" , "Rich food" , "German cream cake" , "Sweet cake or tart" , "Rich (Austrian) cake or pastry" .)