Modern in only one way (3)

I believe the answer is:

new

'modern' is the definition.
(synonyms)

'in only one way' is the wordplay.
'in' indicates the answer is hidden within the clue.
'NEW' is hidden within 'only one way'.

(Other definitions for new that I've seen before include "Modern" , "Unused or novel" , "Unfamiliar, restored" , "Not previously used" , "Seen for the first time" .)

I've seen this clue in the Evening Standard.

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