Followed English and American backing, in conclusion (6)

I believe the answer is:

ensued

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'followed' is the definition.
(I've seen this before)

'english and american backing in conclusion' is the wordplay.
'english' becomes 'E' (abbreviation as in OED).
'and' says to put letters next to each other.
'backing' indicates one should take the final letters.
'in conclusion' becomes 'sued' (I can't justify this - if you can you should give a lot more credence to this answer).
The last letter of 'american' is 'n'.
'e'+'n'+'sued'='ENSUED'

Can you help me to learn more?

(Other definitions for ensued that I've seen before include "Followed as a consequence" , "Resulted, followed" , "Happened in consequence" , "Occurred afterwards" , "Romantic rendezvous" .)

I've seen this clue in The Independent.

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