This is the dialogue:
Joe: What can I lean, knight of arms?
Ted: Well, Joe, the War Industry Board has demanded that Tom's commission be made inactive, so he can help you turn out the range finders.
Joe: But... that's nonsense!! I can take care of it alone.
"To lean" usually means to incline, bend or slant away from the vertical. Is it possible that it can be used in the sense of "do something for someone"?
That doesn't make much sense. Do you have a link to that dialogue?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.