Give vitality to (8)
I believe the answer is:
energise
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">give vitality to</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for energise that I've seen before include "Give vitality to" , "Activate" , "give vigour" , "Give power to" , "Motivate" .)