Just a number, it’s said Crossword Clue

 The answer to the crossword clue "Just a number, it's said" is AGE. This is a 3-letter word that means the length of time that a person or thing has existed. It can also be used to refer to a particular stage of life.

The clue is a bit of a pun, as age is often seen as a measure of importance or worth. However, the clue is saying that age is ultimately just a number and that it does not define a person.

The number in the brackets after the clue (3 letters) refers to the length of the answer word. So, the answer must be a 3-letter word.

I hope this helps!