Repeat without understanding (6)
I believe the answer is:
parrot
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">repeat without understanding</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 parrot that I've seen before include "Bird (that repeats)" , "Vividly coloured bird" , "Raucous bird" , "Spout" , "Copycat who does not understand words or acts imitated" .)