"This soup has a spice that l cannot identify." What kind of clause is the phrase "that I cannot identify."?
It would be a dependent clause
It is dependent because it cannot be a sentence on its own.
A dependent clause is a phrase that cannot stand alone, and must have an independent clause to work as a sentence. An independent clause is a phrase that can stand alone as a sentence and make sense. ex: "She loved the gift very much".'She loved the gift' would be independent, and 'very much' would be dependent.