Note producers -- they might be tickled! (7)
I believe the answer is:
ivories
This clue is a double definition.
'note producers' is the first definition.
(ivory keys on a piano)
'they might be tickled' is the second definition.
('tickling the ivories' means playing the piano)
(Other definitions for ivories that I've seen before include "champers" , "dominoes" , "Piano keys; teeth (slang)" , "Informal piano keys - tickle them" , "What Liberace played" .)