Bodies providing electrical devices to protect English prisoner (9)

I believe the answer is:

fuselages

'bodies' is the definition.
(fuselage is a kind of body)

'electrical devices to protect english prisoner' is the wordplay.
'electrical devices' becomes 'fuses' (fuse is a kind of electrical device).
'to protect' means one lot of letters goes inside another.
'english' becomes 'e' (abbreviation).
'prisoner' becomes 'lag' (I've seen this before).
'e'+'lag'='elag'
'fuses' placed around 'elag' is 'FUSELAGES'.

'providing' acts as a link.

I've seen this clue in The Telegraph.

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