Rough rug fiber (5)
I believe the answer is:
sisal
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rough rug fiber</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sisal that I've seen before include "Agave fibre found in bad sails" , "Plant yielding rope fibre" , "Agave rope-fibre" , "material for painter, say?" , "Natural fibre" .)