Crab part (4)
I believe the answer is:
claw
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crab part</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 claw that I've seen before include "Lobster's grasping structure" , "Rake" , "See 3" , "Scratch - scrape" , "Hook on the end of toe" .)