Shrubs some azalea can’t hide (7)

I believe the answer is:

acanthi

'shrubs' is the definition.
(plural of acanthus, type of shrub)

'some azalea can't hide' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'ACANTHI' is hidden within 'azalea cant hide'.

(Other definitions for acanthi that I've seen before include "bloomers" , "Prickly plants" .)

I've seen this clue in The Times.

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