2006 hit for Amy Winehouse (5)

I believe the answer is:

rehab

(Other definitions for rehab that I've seen before include "brief convalescence?" , "Process of restoring, eg, an addict to health" , "remedial treatment" , "Restoration to health after, eg, addiction (colloq.)" , "Alcohol clinic" .)

I've seen this clue in the Universal.

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