Cassette (4)
I believe the answer is:
tape
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cassette</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that cassette can be written as tape)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tape that I've seen before include "Recording material" , "Video recording" , "Race winning line; record" , "Breast this first to win foot-race" , "The winning runner breasts the ...." .)