A legal eagle is a slang term for a LAWYER, and it is often used to describe a particularly skilled or experienced LAWYER. The term LEGAL EAGLE can be broken down into two crossword solutions: LAWYER (6 letters) and PHILADELPHIALAWYER (18 letters). The first solution, LAWYER, is a general term for someone who practices law, while the second solution, PHILADELPHIALAWYER, is a more specific term for a LAWYER who practices in Philadelphia.