Not talkative (8)
I believe the answer is:
taciturn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not talkative</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 taciturn that I've seen before include "Far from talkative" , "Habitually silent" , "Reserved and uncommunicative" , "Talking little" , "withdrawn" .)