Ensnare one using thread (6,2)
I believe the answer is:
stitch up
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for stitch up that I've seen before include "Cheat" , "Swindle - incriminate - repair" , "Incriminate by unfair means" , "Fix rent" , "Swindle; incriminate by informing on" .)