Like well-balanced school qualification (2-5)

I believe the answer is:

as-level

'school qualification' is the definition.
(AS Level is a type of educational qualification)

'like well-balanced' is the wordplay.
'like' becomes 'as'.
'well-balanced' becomes 'level'.
'as'+'level'='AS-LEVEL'

I've seen this clue in The Guardian.

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