Power up favourite tool (6)

I believe the answer is:

puppet

'tool' is the definition.
('puppet' can be a synonym of 'tool')

'power up favourite' is the wordplay.
'power' becomes 'p'.
'favourite' becomes 'pet' ('pet' can be a synonym of 'favourite').
'p'+'up'+'pet'='PUPPET'

(Other definitions for puppet that I've seen before include "See 20" , "eg Sooty; Petrushka" , "Doll controlled by strings" , "Toy (with strings attached?)" , "Doll operated by strings" .)

I've seen this clue in The Telegraph.

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