Joints (6)
I believe the answer is:
elbows
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">joints</span>' is the definition.<br/ ><span class="explanation-format__explanation">(elbow is a kind of joint)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for elbows that I've seen before include "Bend them and have a few drink" , "Jostles" , "involved in the movement of arms" , "that make army manoeuvres possible" , "Human joints" .)