Dyslexia (4,9)
I believe the answer is:
word blindness
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dyslexia</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 word blindness that I've seen before include "Dyslexia" , "Alexia" .)