One is supposed to look better for eating it (6)

I believe the answer is:

carrot

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'it' is the definition.
The definition suggests a singular noun which matches the answer.

I don't understand how the remainder of the clue works.

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(Other definitions for carrot that I've seen before include "Root vegetable" , "Enticement; vegetable" , "Tapering vegetable" , "The vegetable for persuasion" , "Vegetable to entice the donkey" .)

I've seen this clue in The Globe and Mail.

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