He gets involved with a fault that's really objectionable (7)

I believe the answer is:

hateful

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'really objectionable' is the definition.
'hateful' can be an answer for 'objectionable' (thesaurus). I am not certain of the 'really' bit.

'he gets involved with a fault' is the wordplay.
'gets involved with' is an anagram indicator.
'he' with its letters anagrammed with 'fault' makes 'HATEFUL'.

'that's' is the link.

Can you help me to learn more?

(Other definitions for hateful that I've seen before include "Loathsome" , "repellent" , "Dreadful" , "Abhorrent" , "Unpleasant" .)

I've seen this clue in the Evening Standard.

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