Crossword Genius

It's somewhat circular, like a ring in the nose (5)

Ross

I believe the answer is:

noose

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

'it's somewhat circular' is the definition.
I can't tell whether this definition defines the answer.

'a ring in the nose' is the wordplay.
'a ring' becomes 'o' (letter resembling a ring).
'in' is an insertion indicator.
'o' going inside 'nose' is 'NOOSE'.

'like' is the link.

Can you help me to learn more?

(Other definitions for noose that I've seen before include "Hangman's knot" , "Looped rope" , "Hangman's rope" , "Loop - snare" , "Cord snare" .)

I've seen this clue in the Evening Standard.
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