Take off over speech having missed the first sweet talk (8)
I believe the answer is:
flattery
'sweet talk' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for flattery that I've seen before include "Soft soap" , "Honeyed words" , "Felt tray (anag.)" , "butter" , "Cosying up" .)