Creationist has no taste for what's sarcastic (6)

I believe the answer is:

ironic

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

I can't explain the remainder of the clue.

(Other definitions for ironic that I've seen before include "Double-edged" , "Strangely apt or inapt" , "not as you'd expect" , "Dry (of wit)" , "Wry, sardonic" .)

I've seen this clue in The Irish Times and the Irish Times (Crosaire).

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