Be too clever for (8)
I believe the answer is:
outsmart
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">be too clever for</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 outsmart that I've seen before include "Outwit" , "Win by clever thinking" , "Defeat by more skilful manoeuvring" , "Fool" , "Excel in cleverness" .)