Apple pie maker's device (5)
I believe the answer is:
corer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apple pie maker's device</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for corer that I've seen before include "(Eg, apple) cutter" , "kitchen implement?" , "Device used on apples" .)