Danced, as repeatedly instructed (10)

I believe the answer is:

quadrilled

'danced' is the definition.
(danced a quadrille)

'as repeatedly instructed' is the wordplay.
'as' becomes 'qua' (I've seen this before).
'repeatedly instructed' becomes 'drilled' (as in drills in military training).
'qua'+'drilled'='QUADRILLED'

I've seen this clue in The Guardian.

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