Mistaken leg name leading to confusion (7)
I believe the answer is:
melange
'confusion' is the definition.
(a melange is a mixture or confusion of things)
'mistaken leg name leading' is the wordplay.
'mistaken' indicates an anagram.
'leading' is a charade indicator (letters next to each other).
'leg' put after 'name' is 'nameleg'.
'nameleg' is an anagram of 'MELANGE'.
'to' acts as a link.
(Other definitions for melange that I've seen before include "Medley" , "A French mixture of me with angel" , "Gallimaufry" , "mixed collection" , "A motley assortment of things" .)