Crossword Genius

Rode noisily one way (4)

Ross

I believe the answer is:

road

'one way' is the definition.
(I know that road is a type of agency)

'rode noisily' is the wordplay.
'noisily' shows a homophone (sound like).
'rode' sounds like 'ROAD'.

(Other definitions for road that I've seen before include "'The . . . . to hell is paved with good intentions'" , "Thoroughfare" , "Way to achieving a particular outcome" , "See 2" , "Path" .)

I've seen this clue in the Evening Standard.
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