Crossword Genius

Loathe one in HMS Pinafore Covent Garden's mounted (5)

Ross

I believe the answer is:

abhor

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'loathe' is the definition.
(synonyms)

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(Other definitions for abhor that I've seen before include "Loathe, detest" , "Regard with disgust and hatred" , "Can't bear" , "Abominate" , "cannot stand" .)

I've seen this clue in The Telegraph.
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