Unable to read and write (10)
I believe the answer is:
illiterate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unable to read and write</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 illiterate that I've seen before include "Unable to read and write" , "dunce" , "Ignorant" , "uneducated person" , "Analphabetic" .)