Not expressed (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not expressed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for unsaid that I've seen before include "omitted from speech" , "Tacit" , "left to the imagination" , "with lack of expression" , "withdrawn" .)
(Another definition for unvoiced that I've seen is " Not spoken".)