What does the cryptic crossword clue "The indisputable leader? (8,7)" mean?

The definition is "The indisputable leader". The wordplay uses a double definition. Double definition The answer is DEFINITE ARTICLE.

What is the answer to "The indisputable leader? (8,7)"?

The answer is DEFINITE ARTICLE.

Times Cryptic #28737 | 11 Across | 2023-10-18 flower