Video initially helps an England football manager (8)

I believe the answer is:

venables

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'an england football manager' is the definition.
(Terry Venables, England football manager 1994-96)

'video initially helps' is the wordplay.
'initially' suggests taking the first letters.
'helps' becomes 'enables' (I can't justify this - if you can you should believe this answer much more).
The first letter of 'video' is 'v'.
'v'+'enables'='VENABLES'

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I've seen this clue in The Telegraph.

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