Act like a capacitor and assume control (4,6)

I believe the answer is:

take charge

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'assume control' is the definition.
(I've seen this in another clue)

'act like a capacitor' is the wordplay.
'act' becomes 'take' (take is a kind of act).
'like a capacitor' becomes 'charge' (I can't justify this - if you can you should believe this answer much more).
'take'+'charge'='TAKE CHARGE'

'and' is the link.

Can you help me to learn more?

I've seen this clue in The Daily Express.

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