1. Inaccurate: John is a talkative.
2. Accurate: John talks a lot; omit the definite article “a,” or John talks a lot.
As stated in sentence 1, “talkative” is an adjective and shouldn’t be used as a noun. It should be a noun, as demonstrated in sentence 2. Person and Johm are nouns.
Note: The English collocation “extreme end” is excellent. It is not a pleonasm or a tautology, as some English speakers claim. Use it.
The far end is where the ball is.