Nearly dazzle a carnival city's entertainment promoter (10)
I believe the answer is:
impresario
'promoter' is the definition.
(I know that promoter can be written as impresario)
'nearly dazzle a carnival city's' is the wordplay.
'nearly' means to remove the last letter.
'dazzle' becomes 'impress' (I've seen this in another clue).
'carnival city' becomes 'Rio' (Rio de Janeiro is famous for its carnival).
'impress' with its final letter taken away is 'impres'.
'impres'+'a'+'rio'='IMPRESARIO'
'entertainment' acts as a link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for impresario that I've seen before include "Promoter of public entertainments" , "Producer of performing arts" , "Showman" , "opera manager" , "theatre director" .)