Knowing oneself to be used as welfare (4,5)

I believe the answer is:

self aware

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'knowing oneself to' is the definition.
I can't judge whether this defines the answer.

'used as welfare' is the wordplay.
'used' indicates anagramming the letters.
'as'+'welfare'='aswelfare'
'aswelfare' anagrammed gives 'SELF-AWARE'.

'be' is the link.

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I've seen this clue in The Daily Express.

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