Close observation (12)

I think it could be either:

Which length description are you looking for?:

surveillance

'close observation' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for surveillance that I've seen before include "Covert observation" , "Close observation" , "Watch" .)

I've seen this clue in The Mirror, The Independent 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.