That name category was pretty tough. Nice red herrings.

One of those where I could see what the links were but couldn’t get the groups together. I hadn’t heard of a dog version of the link until this puzzle - that didn’t help matters.
Good grid with lots of red herrings

Clever. Like Dilly could spot some of the links, but not work it out fully.

While this was generally quite an easy one (of which I much approve), I really appreciated being misfooted in the way you hid The The and prevented the elusive 10/10.

I think quite sure about 'acoustic' and 'electric' might be interchangeable. Both are type of guitars, but there seems to be also an 'electric theory'. It has about half the hits on Google compared to 'acoustic theory', so it might be less common, but it does seem to exist.

Country park?