King or Queen maybe in well-practised move (3,5)

I believe the answer is:

set piece

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'well-practised move' is the definition.
(move in sport)

I don't understand the remainder of the clue.

(Other definitions for set piece that I've seen before include "Formal arrangement based on steep ice" , "Piece of writing arranged for maximum effect" , "Formal speech; pictorial firework arrangement" , "Moves from corner perhaps" , "corner, say" .)

I've seen this clue in The Telegraph.

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