However, "direct" and "dialect" are not actually homophones in the way you're thinking. They have the same pronunciation, but "dialect" refers to a regional or social variety of language, while "direct" means straightforward or without deviation.
It seems you're looking for a word that means "straight" or "unbent" as an opposite of "crooked." The closest homophone would be "straight."
Let me know if you have any other word puzzles!