Serving (7)
I believe the answer is:
portion
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">serving</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that serving can be written as portion)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for portion that I've seen before include "A lot of" , "Segment" , "Serving" , "Share, helping" , "allotment" .)