The most common and most likely answer to this crossword clue is the 9 letter word REVULSION
I've seen this crossword clue in The Daily Telegraph
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More clues leading to the result REVULSION
Buddy explains!

The straight part
We know that "disgust" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case disgust = revulsion.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does REVULSION mean?
REVULSION noun- Abhorrence, a sense of loathing, intense aversion, repugnance, repulsion, horror.
- A sudden violent feeling of disgust.
- The treatment of one diseased area by acting elsewhere; counterirritation.
- A strong pulling or drawing back; withdrawal.
- A sudden reaction; a sudden and complete change of the feelings.