Savoury snack (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">savoury snack</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 canape that I've seen before include "Light refreshment" , "Small savoury item" , "Small savoury on toast or bread" , "bite to eat" , "Savoury appetiser, often accompanied by Champagne" .)