More mad (7)
I believe the answer is:
angrier
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">more mad</span>' is the definition.<br/ ><span class="explanation-format__explanation">('angry' can be similar in meaning to 'mad')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for angrier that I've seen before include "More irate" , "more outraged" , "More furious" , "More annoyed" , "Not so calm" .)