Hearty companion (4)
I believe the answer is:
hale
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hearty companion</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for hale that I've seen before include "Showing vigorous good health" , "Healthy and hearty" , "Well" , "Strong and healthy" , "Healthy and robust" .)