Also, many of these problems work the other way too. Instead of forcing somebody to ask clarifying questions, ask you to describe at a different level of detail

Also, many of these problems work the other way too. Instead of forcing somebody to ask clarifying questions, ask you to describe at a different level of detail, etc., you can ask ahead of time. "What level of detail are you looking for here? I can talk about it at x level, but if you want y level, Susan is more knowledgable" or "I've been thinking about that too, but I don't have a lot of well formulated thoughts on the topic. If you'd like, we can talk through some of the more half-baked ideas I've been kicking around and see if we can get some clarity together" or simply stopping every so often and asking "Is this making sense? Did I gloss over anything important that we should revisit?"