Programs announced in recess (4)

I believe the answer is:

apse

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'recess' is the definition.
(apse is a kind of recess)

I can't explain the rest of the clue.

(Other definitions for apse that I've seen before include "Architectural feature in a church" , "Niche in church" , "Rounded end of building" , "Part of a church with the altar" , "Primate holds saint to be a" .)

I've seen this clue in The Times.

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