Utter fluently (4,3)
I believe the answer is:
reel off
'utter fluently' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for reel off that I've seen before include "Announce with speed and fluency" , "Utter (something) rapidly and fluently" , "Rapidly announce" , "Recite by heart" , "Recite (something) rapidly" .)