Ordinary, commonplace (8)
I believe the answer is:
everyday
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">ordinary</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">commonplace</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for everyday that I've seen before include "Commonplace and ordinary" , "Ordinary, for regular use" , "Quotidian" , "Run-of-the-mill" , "familiar" .)