Healthy, strong (5)
I believe the answer is:
lusty
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">healthy</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">strong</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for lusty that I've seen before include "Full of strength and energy" , "Brawny" , "Consumed with carnal desire" , "Full of health, vigour" , "Healthy, strong, vigorous" .)