Frenzied, out of control (7)
I believe the answer is:
berserk
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">frenzied</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">out of control</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for berserk that I've seen before include "Mad" , "nuts" , "Crazy" , "Wild, frenzied" , "Frenzied, maniacal" .)