Fantastic country bishop leaving devastated heart of rural Britain (9)

I believe the answer is:

ruritania

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'britain' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for ruritania that I've seen before include "Imaginary small kingdom" , "Hope place" , "Hope country" , "Fictional central European kingdom" , "romantic situation" .)

I've seen this clue in The Independent.

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