Diabetes hormone (7)
I believe the answer is:
insulin
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">diabetes hormone</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 insulin that I've seen before include "Hormone controlling sugar supply" , "Sugar-controlling hormone" , "blood sugar regulated by this" , "something to do with the pancreas" , "Hormone involved in diabetes" .)