Attention seeker (7)
(Another definition for showoff that I've seen is " Exhibitionist".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">attention seeker?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(cough used to attract attention)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ahem that I've seen before include "Attention-getter" , "Cough to draw attention" , "Exclamation attracting attention" , "attempt to attract attention" , "request for attention" .)