Tartan (5)
I believe the answer is:
plaid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tartan</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that tartan can be written as plaid)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for plaid that I've seen before include "Tartan patterned cloth" , "Tartan-pattern cloth" , "Scottish Highland fabric" , "party in Wales" , "Scotsman's cloth" .)