Definitely an article (3)

I believe the answer is:

the

I'm a little stuck... Click here to teach me more about this clue!

'article' is the definition.
(the definite article in English)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for the that I've seen before include "and 24 Down: Similar things" , "Born - - - - - - - - (carol)" , "The most frequently occurring word in the Bible (and in this clue!)" , "Finis" , "Base of ever-expanding nursery rhyme" .)

I've seen this clue in The Mirror.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.