Brief result I brought about? Far from it (12)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

Anagram [brought about] of BRIEF RESULT I. I think most if not all of the clue is the definition. To filibuster is to obstruct (often legislation) by employing delaying tactics. This was one of the long answers that contributed to my difficulties although I know the word well.