Tell tall tales (3)
I believe the answer is:
lie
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tell tall tales</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 lie that I've seen before include "Mistruth" , "Pork pie" , "situation" , "Falsity" , "Be prostrate" .)