Navy ruing new uniform (9)

I believe the answer is:

unvarying

'uniform' is the definition.
(I know that uniform can be written as unvarying)

'navy ruing new' is the wordplay.
'new' is an anagram indicator.
'navy'+'ruing'='navyruing'
'navyruing' anagrammed gives 'UNVARYING'.

I've seen this clue in The Guardian.

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