How can I express that an explanation is clear, considering the intrinsic difficulty of the topic? I mean that the explanation might not be easy to understand, if the subject matter is intrinsically hard, but a superlatively adjectivy explanation is one that is as clear as it can get. Someone who frequently produces such explanations could be said to have good teaching skills. What's a good word to substitute for adjectivy?
The word that comes to my mind is the French word “pédagogique”, which a dictionary describes as meaning roughly “as coming from a good teacher”. Unfortunately the corresponding English word has negative connotations instead.