Hale - We're all clear on the Burrows execution. (1.What does "clear" mean in here?)
We don't have any doubts about/concerning...
We agree on
You're up against much bigger fish than me. (2.What does "fish" mean in this sentence?) I'll arrange for you to say good-bye. You ship out tomorrow.
you are up against more important,powerful [inherent meaning: more dangerous]people than myself
hope this helps