Mystified (10)
'mystified' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for bamboozled that I've seen before include "Deceived" , "thrown" , "Confused; cheated" , "Stumped" .)
(Other definitions for bemused that I've seen before include "Floored" , "Stupefied" , "Perplexed or absorbed in thought" , "Puzzled" , "Lost for words" .)
'mystified' is the definition.
('befuddle' can be a synonym of 'mystify')
This is the entire clue.
(Another definition for befuddled that I've seen is " in confused manner".)