Without fat (4)

I believe the answer is:
lean
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">without fat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lean that I've seen before include "List; thin" , "Slight - incline" , "Slant" , "Spare - incline" , "Slender" .)