Crossword Genius

For thirty seconds one has quiet at least (7)

Ross

I believe the answer is:

minimum

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

'least' is the definition.
(similar in meaning)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for minimum that I've seen before include "The least of smallest amount possible" , "Lower limit" , "Least recorded value" , "Nadir" , "Lowest point" .)

I've seen this clue in The Globe and Mail.
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.