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He wrote satires fast (5)

Ross

I believe the answer is:

swift

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'fast' is the definition.
(similar in meaning)

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(Other definitions for swift that I've seen before include "wit?" , "Fast-moving bird" , "Fast - novelist" , "Quick and rapid like a long-winged bird" , "Quick Irish satirist?" .)

I've seen this clue in The Daily Express.
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