Permanent (8)
I believe the answer is:
enduring
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">permanent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for enduring that I've seen before include "Putting up with something" , "Going through" , "Lasting, unceasing" , "Eternal" , "Putting up with patiently" .)