Manager and I confused Paris with Rome (10)
I believe the answer is:
impresario
'manager' is the definition.
(thesaurus)
'i confused paris with rome' is the wordplay.
'confused' indicates anagramming the letters.
'with' says to put letters next to each other.
'paris' put after 'rome' is 'romeparis'.
'romeparis' anagrammed gives 'mpresario'.
'i'+'mpresario'='IMPRESARIO'
'and' is the link.
(Other definitions for impresario that I've seen before include "Theatrical organiser" , "Arranger of concerts, etc" , "As company manager" , "Producer of performing arts" , "Stage promoter" .)