Smiles in order to impress (7)

I believe the answer is:

simpers

'smiles' is the definition.
(I know this)

'order to impress' is the wordplay.
'order' indicates an anagram.
'impress' with letters rearranged gives 'SIMPERS'.

'in' acts as a link.

(Another definition for simpers that I've seen is " Smiles affectedly".)

I've seen this clue in the Evening Standard.

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