Circuit to power computer (6)

I believe the answer is:

laptop

'computer' is the definition.
(laptop is a kind of computer)

'circuit to power' is the wordplay.
'circuit' becomes 'lap' (synonyms).
'power' becomes 'p'.
'lap'+'to'+'p'='LAPTOP'

(Other definitions for laptop that I've seen before include "PC" , "Portable computer" , "Aid for businessman" , "Type of computer" , "Some work on this" .)

I've seen this clue in The Times.

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