Sent torch into action (9)

I believe the answer is:

delighted

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'sent' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how one could define the other.

'torch into action' is the wordplay.
'torch' becomes 'light' (I've seen this before).
'into' indicates putting letters inside.
'action' becomes 'deed' (deed is a kind of action).
'light' going into 'deed' is 'DELIGHTED'.

Can you help me to learn more?

(Other definitions for delighted that I've seen before include "Happy" , "Greatly pleased" , "Joyful" , "Overjoyed" , "Pleased as Punch" .)

I've seen this clue in The Independent.

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