Ardour, zeal (7)
I believe the answer is:
fervour
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">ardour</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">zeal</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for fervour that I've seen before include "Great enthusiasm" , "Passionate feeling" , "Feelings of great warmth and intensity" , "Heated feeling" , "Zeal" .)