He won't take anything down more quickly (6)

I believe the answer is:

faster

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'more quickly' is the definition.
(synonyms)

I don't understand the rest of the clue.

(Other definitions for faster that I've seen before include "Strafe (anag)" , "with more security" , "One refuses to eat" , "More speedy" , "A person who refuses to eat" .)

I've seen this clue in The Irish News.

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