Confuse, puzzle (8)
I believe the answer is:
bewilder
This clue is a double definition.
'confuse' is the first definition.
(synonyms)
'puzzle' is the second definition.
(synonyms)
(Other definitions for bewilder that I've seen before include "Confuse - perplex" , "Flummox, confuse" , "Deli brew (anag.)" , "Perplex the wild beer" , "Confuse totally" .)