Hostile about some poetry (6)

I believe the answer is:

averse

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'hostile' is the definition.
(I've seen this in another clue)

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

(Other definitions for averse that I've seen before include "Having a strong opposition (to)" , "Strongly opposed (to something)" , "'Opposed, disinclined (6)'" , "Loath, reluctant" , "Disinclined, maybe to hard work" .)

I've seen this clue in The Sun.

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