Fear commentator's bogus prejudice to be baseless (6)

I believe the answer is:

phobia

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'fear' is the definition.
(a phobia is a fear of a particular thing)

I cannot understand how the remainder of the clue works.

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(Other definitions for phobia that I've seen before include "Aversion" , "A lasting abnormal fear of something" , "A lasting abnormal fear or dislike" , "Pathological fear" , "Anxiety disorder" .)

I've seen this clue in the Sydney Morning Herald.

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