Verve, flair (4)
I believe the answer is:
elan
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">verve</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">flair</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for elan that I've seen before include "Stylish elegance" , "Stylish enthusiasm" , "Stylish verve" , "Combination of style and vigour" , "Vivacity, dash" .)