Clever clogs (4-3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">clever clogs</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for know-all that I've seen before include "Pedantic" , "Smarty-pants" , "Type of person who wont take advice" , "Person who behaves like encyclopedia 94-3)" , "One who thinks they have all the answers" .)
(Other definitions for smart alec that I've seen before include "Clever sort" , "annoying person" , "Clever Dick" , "Know-all" , "Clever person" .)