Valiant, fearless (5)
I believe the answer is:
brave
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">valiant</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">fearless</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(associated in meaning)</span><br/ ><br/ ></span>
(Other definitions for brave that I've seen before include "Daring" , "bottle?" , "Showing courage" , "Hardy" , "Heroic, valiant" .)