26 across
Relief:
American
sizes
successively
decreasing
(4)
Relief: American sizes successively decreasing (4)
hints
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checks
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hints
The definition is at the beginning of the clue.
How the clue works
The definition is Relief, in the sense of charity or aid. You get there by taking A for American, then tacking on L, M, S — clothing sizes running in successively decreasing order (Large, Medium, Small).