Ticket counterfoil (4)
I believe the answer is:
stub
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ticket counterfoil</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 stub that I've seen before include "blunt thing" , "Remnant, butt" , "evidence of smoking, for example" , "Pencil or cigarette end" , "Extinguish the cigarette on a counterfoil" .)