Pencil topper (6)
I believe the answer is:
eraser
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pencil topper</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 eraser that I've seen before include "One removes writing" , "destroyer" , "A student's rubber, or the one who uses it" , "Correcting implement used in drawing or writing" , "Item used for rubbing out" .)