Low-cal (4)
I believe the answer is:
lite
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">low-cal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lite that I've seen before include "Low in calories" , "With fewer calories" , "Low in strength" .)