Baffle, puzzle (7)
I believe the answer is:
perplex
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">baffle</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that baffle can be written as perplex)</span><br/ ><br/ >'<span class="explanation-format__original">puzzle</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that puzzle can be written as perplex)</span><br/ ><br/ ></span>
(Other definitions for perplex that I've seen before include "Make (someone) baffled" , "Bewilder" , "Baffle, puzzle" , "Nonplus" , "Bamboozle" .)