Obtain by coercion or intimidation (6)
I believe the answer is:
extort
'obtain by coercion or intimidation' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for extort that I've seen before include "Force from, tax or confession" , "Secure money by intimidation" , "Obtain by intimidation, say money" , "To bleed" , "Taken from by force or threats" .)