Impresario (7)
I believe the answer is:
showman
'impresario' is the definition.
(I know that impresario can be written as showman)
This is the entire clue.
(Other definitions for showman that I've seen before include "Person helping to present" , "Circus proprietor" , "Entertainer" , "Circus or fair manager" , "Impresario" .)