Another name for Vitamin A (7)
I believe the answer is:
retinol
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">another name for vitamin a</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 retinol that I've seen before include "vitamin essential for good eyesight" , "certain vitamin" .)