One cutting outside power - here’s tool for reconnection? (7)

I believe the answer is:

splicer

'tool for reconnection?' is the definition.
(tool for splicing things together)

'one cutting outside power' is the wordplay.
'one cutting' becomes 'slicer' (someone cutting or slicing).
'outside' indicates putting letters inside.
'power' becomes 'p'.
'slicer' placed around 'p' is 'SPLICER'.

'here's' is the link.

I've seen this clue in The Independent.

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