Flower got bigger (4)

I believe the answer is:

rose

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'flower' is the definition.
(I know that rose is a flower)

I can't explain the remainder of the clue.

(Other definitions for rose that I've seen before include "vacated bed" , "Fragrant flower" , "Flower - girl - got up" , "grew" , "Floral emblem of England" .)

I've seen this clue in The Irish Independent.

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