Jabbered (9)
(Another definition for chattered that I've seen is " Talked quickly about trivia - like magpie?".)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jabbered</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for yapped that I've seen before include "Yelped" , "Barked like a small dog" , "Chatted" .)