Assertively masculine (5)
I believe the answer is:
macho
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">assertively masculine</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 macho that I've seen before include "Assertively masculine" , "Excessively male" , "Butch" , "Ultra-masculine" , "Overtly masculine" .)