Meat; gripe (4)
I believe the answer is:
beef
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">meat</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that Beef is a type of meat)</span><br/ ><br/ >'<span class="explanation-format__original">gripe</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ ></span>
(Other definitions for beef that I've seen before include "Bovine flesh" , "Grouse - meat" , "See 24" , "Meat - complaint" , "Strength - grievance" .)