Author moving quickly (5)

I believe the answer is:

swift

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This clue might be a double definition.

'author moving' is the first definition.
'swift' can be an answer for 'author' (I've seen this before). I am not sure about the 'moving' bit.

'quickly' is the second definition.
(I've seen this before)

Can you help me to learn more?

(Other definitions for swift that I've seen before include "Fast moving; bird" , "Expeditious" , "Jonathan . . . . . wrote 'Gulliver's Travels'" , "like a peregrine falcon?" , "Quick Irish satirist?" .)

I've seen this clue in The Times.

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