Errors in printing (6)
I believe the answer is:
errata
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">errors in printing</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 errata that I've seen before include "Mistakes in printing or writing" , "Mistakes in printed material" , "Corrigenda" , "Slips" , "Boobs in a book" .)