Sender of unwanted emails (7)
I believe the answer is:
spammer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sender of unwanted emails</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for spammer that I've seen before include "His unwanted messages" , "Person sending unsolicited emails" , "Unwanted e-mail sender" , "Sender of junk e-mails" , "He sends out junk" .)