Stretchable (7)
I believe the answer is:
elastic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stretchable</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for elastic that I've seen before include "Kind of band" , "Stretch material" , "Flexible rubber strip" , "Something stretchy" , "Resilient" .)