The most common and most likely answer to this crossword clue is the 9 letter word ATTAINTED
I've seen this crossword clue in The Times
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The straight part
We know that "disgraced at one time" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case disgraced at one time = attainted.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 ATTAINTED mean?
ATTAINTED verb- To subject to attainder; to condemn (someone) to death and extinction of all civil rights.
- To subject to calumny; to accuse of a crime or dishonour.
- To taint; to corrupt, sully.
- Subject to attainder; condemned to death or outlawry, hence stripped of one's titles, hereditary rights, or possessions.
- Tainted, corrupted.