Turning one way, perhaps (6)

I believe the answer is:

street

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'turning one way' is the definition.
'street' can be an answer for 'way' (street is a kind of way). I'm unsure of the 'turning one' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for street that I've seen before include "lane" , "Perry's Della" , "Public road in a conurbation" , "See 7" , "Somerset town; urban way" .)

I've seen this clue in the Evening Standard.

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