Revive, reinvigorate (7)
I believe the answer is:
refresh
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">revive</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">reinvigorate</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for refresh that I've seen before include "Stimulate as by reminding, or top up drink" , "perk up!" , "Jog" , "Renew" , "Revive, cheer" .)