Able to recover quickly (9)
I believe the answer is:
resilient
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">able to recover quickly</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 resilient that I've seen before include "Able to recover quickly" , "Rebounding from impact" , "Hardy" , "Quickly recovering" , "Elastic" .)