Podcast App Using Lots of Memory in Documents and Data

I've been having a problem with my Podcast App using a lot of memory that I can't clear.

As you can see, I only have a couple of podcasts on the device itself - the rest of the memory is being used by "Documents and Data", but I have no way to delete it. Everything that could be using memory is off - I don't download any episodes, I only stream episodes, etc, so there are no podcasts to delete other than the two files I have in that image.

How do I get to Documents and Data in order to free up space? I can't reset my phone anymore since I have a few apps that have since been discontinued and can't restore if I were to reset my phone.

Thanks.

 

Sorry to bump, but I was hoping someone might have a solution.