Vigour, spirit (3)
I believe the answer is:
pep
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">vigour</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">spirit</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(pep is a kind of spirit)</span><br/ ><br/ ></span>
(Other definitions for pep that I've seen before include "Energy, liveliness" , "Vim and vitality" , "Palindromic energy or vim" , "savings plan" , "Palindrome for vitality or energy" .)