Un-British bachelor composed hymn tune (7)

I believe the answer is:

chorale

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'hymn tune' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

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(Other definitions for chorale that I've seen before include "Lutheran hymn-tune" , "vocal music" , "Stately hymn tune" , "Composition" , "Psalm or hymn tune" .)

I've seen this clue in The Sun.

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