Possible Clues:

• Set out work to preclude using a legal term
• Legally hinder removal from assizes to prison
• Is 'e first in class? This should preclude it
• Bar billiards shots screwed back by tip of cue
• Bar Beethoven originally omitted from greatest work?
• Will 'e go no more to preclude this in law?
• Legally ban illegal stimulants and (contrariwise) depressant
• Hinder, preclude (law)
• Put an end to, legally
• Hinder sorting of post after end of strike