Parts (of a whole) (5)
I believe the answer is:
units
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">parts of a whole</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for units that I've seen before include "Single parts of a whole" , "Individual things as parts of a whole" , "Apparatus similar to barbecue" , "Detachments" , "Single things" .)