Unique method of organising traffic? (3,3)

I believe the answer is:

one way

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'organising traffic?' is the definition.
I can't judge whether this defines the answer.

'unique method' is the wordplay.
'unique' becomes 'one' (synonyms).
'method' becomes 'way' (way of doing something).
'one'+'way'='ONE-WAY'

'of' is the link.

Can you help me to learn more?

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

I've seen this clue in the Evening Standard.

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