Material for writing on (5)
I believe the answer is:
paper
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">material for writing on</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 paper that I've seen before include "It's made from wood pulp generally" , "Set of written exam questions" , "round > tiger" , "Sort of clip" , "Material made from wood pulp, say" .)