Rough estimate (13)

I believe the answer is:

approximation

'rough estimate' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for approximation that I've seen before include "Rough estimate" , "Likeness - guess" , "It's roughly right" , "Fairly close estimate" .)

I've seen this clue in The Sunday Times and The Times.

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.