Obtain by coercion (6)
I believe the answer is:
extort
'obtain by coercion' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for extort that I've seen before include "Squeeze" , "Obtain wrongfully" , "Obtain importunately" , "Force from, tax or confession" , "Obtain (money etc) by force" .)