Ruralite wrong to ditch large pot plant (7)

I believe the answer is:

etruria

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'pot plant' is the definition.
(Etruria Works, plant which made ceramic pots)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for etruria that I've seen before include "Ancient country in Italy" , "founded by Wedgwood" , "Roman name for Tuscany" , "Wedgwood 1769 factory" , "Ancient area of Italy" .)

I've seen this clue in The Telegraph and The Times.

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