With noted talent for “Oklahoma!” say? (7)
I believe the answer is:
musical
I believe this clue is a double definition.
'with noted talent' is the first definition.
(talented with musical notes)
'oklahoma say?' is the second definition.
(Oklahoma! is an example)
'for' acts as a link.
(Other definitions for musical that I've seen before include "Melodious" , "Annie or Mame, say" , "Cats maybe" , "Drama with singing" , "eg Chicago" .)