Preserve; rescue (4)
I believe the answer is:
save
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">preserve</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">rescue</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(saving is a kind of rescuing)</span><br/ ><br/ ></span>
(Other definitions for save that I've seen before include "Rescue; store" , "Set aside" , "Rescue for a rainy day?" , "Keep" , "Salvage" .)