Finger-shaped cake (6)
I believe the answer is:
eclair
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">finger-shaped cake</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 eclair that I've seen before include "Soft cream cake" , "Finger-shaped cake with cream and chocolate" , "A long thin cake with chocolate covering" , "Finger-shaped, chocolate-iced, cream-filled cake" , "Long (but not long-lasting) cake" .)