A slight incapable manager - suggestions ?

Hi everyone

 I understand that incapable is a strong word but I might have expected a bit more . During my time at work I find that ( which is being found gradually ) , that my manager struggles to understand what I meant sometimes , for example, Often I provide more complex ideas but she would expected much more straightforward answers,  If I wanted to combine everything into one large file onto Excel, it’s too much for her so she wanted a simple version ( ie different tab) but for me, I would find it easier to comprehend. I mean my managers definitely have her strengths which I can learn it from, but so much time being spent on things she might not find it understanding. If she gives me a task, we are going back and forth back and forth to work something because the initial instruction was not strong. She was  my role before, therefore it might be a steep learning curve  and also, with greatest respect( and I am certainly not being arrogant) , I came from a masters economics background, she is 15 years older than me, however only has An a level degree, I think for me the company has a lot to Learn from, but the manager was not up to my standard.  Any tips on improving the working relationship ? 

Many thanks in advance