The most common and most likely answer to this crossword clue is the 9 letter word HIDEBOUND
I've seen this crossword clue in Independent
H
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D
More clues leading to the result HIDEBOUND
- Restricted by petty rules, like badly fed cattle?
- In disguise, spy entertaining unionist Conservative
- Traditionalist nomadic Bedouin assuming the mantle of husband
- Destined to join obscure set
- Bigoted devotee defending limited plan by bishop
- Conservative scoundrel concealing one plot from the right
- Bigoted scoundrel great Indian spinner turns in
- Kid perhaps destined to be conventional
- Sounds like Stevenson’s doctor’s situation is intractable
- Veil’s tied, being narrow-minded
Buddy explains!

The straight part
We know that "Traditionalist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case traditionalist = hidebound.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 HIDEBOUND mean?
HIDEBOUND adjective- Bound with the hide of an animal.
- (of a domestic animal) Having the skin adhering so closely to the ribs and back as not to be easily loosened or raised; emaciated.
- (of trees) Having the bark so close and constricting that it impedes the growth.
- (of a person) Stubborn; narrow-minded; inflexible.
- Niggardly; penurious; stingy.