Very noticeable (3-8)
I believe the answer is:
eye-catching
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">very noticeable</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 eye-catching that I've seen before include "Seizing one's attention" , "Immediately appealing or noticeable" , "Conspicuous" , "Standing out" , "Striking" .)