Poet runs away over humiliation (4)

I believe the answer is:

snub

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

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

(Other definitions for snub that I've seen before include "Ignore totally" , "'Rebuff, ignore (4)'" , "Rudely ignore" , "Insult by ignoring" , "Rebuff with buns" .)

I've seen this clue in The Telegraph.

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