The term 'GET BY A THREAT' can be summarized by the crossword solution 'EXTORT', which is a 6-letter word. Extortion is a criminal offense in which someone obtains money, property, or services from another person through coercion or force. It is a form of theft that involves threats of violence, property damage, or other forms of harm to the victim. The perpetrator may threaten to reveal embarrassing or damaging information about the victim, or may threaten physical harm or financial ruin.