Correct articles fit surrounding layer

I believe the answer is:

subedit

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'correct articles fit surrounding layer' is the definition.
I can't tell whether this defines the answer.

'fit surrounding layer' is the wordplay.
'fit' becomes 'suit' (synonyms).
'surrounding' is an insertion indicator.
'layer' becomes 'bed' (bed is a kind of layer).
'suit' going around 'bed' is 'SUBEDIT'.

Can you help me to learn more?

(Other definitions for subedit that I've seen before include "daily duty?" , "Check newspaper copy" , "Prepare for publishing" , "Headline writer does" , "Correct copy" .)

I've seen this clue in The Daily Mail.

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