Crossword Genius

Unique system that seems nothing new on some days (3,3)

Ross

I believe the answer is:

one way

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'unique system that' is the definition.
I can't tell whether this definition defines the answer.

'nothing new on some days' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'on' is a charade indicator (letters next to each other).
'some' means to look at the middle letters.
The middle of 'days' is 'ay'.
'o'+'new'+'ay'='ONE-WAY'

'seems' acts as a link.

Can you help me to learn more?

(Other definitions for one way that I've seen before include "getting no comeback?" , "Perhaps unrequited" , "permitting no U-turn" , "Description of certain roads" .)

I've seen this clue in the Evening Standard.
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