The most common and most likely answer to this crossword clue is the 9 letter word SECTARIAN
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More clues leading to the result SECTARIAN
Buddy explains!

The straight part
We know that "bigoted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bigoted = sectarian.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 SECTARIAN mean?
SECTARIAN noun- A member of a sect.
- A bigot.
- Of, or relating to a sect.
- Dogmatic or partisan.
- Parochial or narrow-minded.
- Bigoted.