Kneecaps (8)
I believe the answer is:
patellae
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">kneecaps</span>' is the definition.<br/ ><span class="explanation-format__explanation">('patella' can be a synonym of 'kneecap')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for patellae that I've seen before include "Bony bits" , "The formal kneecaps" , "Late leap twisted kneecaps" , "Bones" .)