Inveigle using sweet-talk (7)
I believe the answer is:
wheedle
'inveigle using sweet-talk' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for wheedle that I've seen before include "Seek to persuade" , "Cajole or attempt to persuade by flattery" , "Get by coaxing, flattery" , "Inveigle using sweet-talk" , "Entice by soft words" .)