Grow furious (3,3)
I believe the answer is:
see red
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">grow furious</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 see red that I've seen before include "Become angry as bull might" , "get angry" , "Become furious" , "Become angry like bull" , "Become angry (colloq.)" .)