Shakespeare's merchant of Venice (7)
I believe the answer is:
antonio
'shakespeare's merchant of venice' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for antonio that I've seen before include "-- Pappano, conductor" , "A notion about The Merchant of Venice" , "One contracted for a pound" , "-- Vivaldi, composer" , "sea captain in Twelfth Night" .)