Energy, vim (3)
I believe the answer is:
pep
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">energy</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(personal energy, vim)</span><br/ ><br/ >'<span class="explanation-format__original">vim</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for pep that I've seen before include "Ginger; tax-free investment" , "Palindrome for vitality or energy" , "Palindromic energy or vim" , "Go" , "Energy, zip" .)