Elastic material (6)
I believe the answer is:
rubber
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">elastic material</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rubber that I've seen before include "material with some flexibility" , "Match of three successive games at bridge" , "Elastic material" , "Tree extract with erasing quality" , "fetish?" .)