Most of the web initially enthralled prisoner (8)

I believe the answer is:

internee

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'prisoner' is the definition.
(I know that internee is a type of prisoner)

'most of the web initially enthralled' is the wordplay.
'most of' means to remove the last letter.
'the web' becomes 'internet' (I've seen this in another clue).
'initially enthralled' becomes 'e' (I can't explain this - if you can you should believe this answer much more).
'internet' with its final letter taken off is 'interne'.
'interne'+'e'='INTERNEE'

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(Other definitions for internee that I've seen before include "Detainee" , "Imprisoned person" , "One is held without trial" , "Inmate" , "One kept prisoner" .)

I've seen this clue in The Independent.

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