Speak frankly (4,6)
I believe the answer is:
talk turkey
'speak frankly' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for talk turkey that I've seen before include "Speak frankly (about the Christmas dinner?)" , "as American cooks might around Thanksgiving" , "Discuss business - gobble?" , "have a frank discussion" , "(In business) discuss frankly" .)