Blackmail (9)
'blackmail' is the definition.
(I know that blackmail is a more specific form of extort)
This is the entire clue.
(Other definitions for extort that I've seen before include "Wring (money) out (by violence, etc)" , "Obtain (money etc) by force" , "Extract money with menaces" , "Extract money with menances" , "Gain money by force" .)
'blackmail' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for extortion that I've seen before include "Extraction of money with menaces" , "Blackmail" , "The obtaining of money by force or threat" .)