Like Edith Nesbit’s bookish children (7)

I believe the answer is:

railway

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'like edith' is the definition.
The definition suggests a singular noun which matches the answer.

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for railway that I've seen before include "Romney, Hythe & Dymchurch, for example" , "Transport system" , "Tracks" , "Line of track" , "Track for trains" .)

I've seen this clue in the Evening Standard.

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