Door parts (6)
I believe the answer is:
hinges
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">door parts</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 hinges that I've seen before include "A door swings on them" , "Movable joints between lid and box, say" , "Flexible joints" , "Depends on - like door?" , "Doors swing on them" .)