Comes in (6)
I believe the answer is:
enters
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">comes in</span>' is the definition.<br/ ><span class="explanation-format__explanation">('enter' can be a synonym of 'come in')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for enters that I've seen before include "Registers for a competition, say" , "Comes in" , "Inserts" , "Goes in or records in book" , "Records, in a diary say" .)