Crossword Genius

Stupid, small lily arrangement (5)

Ross

I believe the answer is:

silly

'stupid' is the definition.
(I've seen this before)

'small lily arrangement' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'arrangement' indicates anagramming the letters.
'lily' with letters rearranged gives 'illy'.
's'+'illy'='SILLY'

(Other definitions for silly that I've seen before include "Daft" , "Ridiculous, frivolous" , "Stupid" , "Preposterous" , "Absurd" .)

I've seen this clue in The Mirror.
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