Broadcast got on air for church ceremony (8)

I believe the answer is:

rogation

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'church ceremony' is the definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.

'broadcast got on air' is the wordplay.
'broadcast' is an anagram indicator (letters scattered or cast around).
'got'+'on'+'air'='gotonair'
'gotonair' anagrammed gives 'ROGATION'.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for rogation that I've seen before include "Asking" , "praying for a good harvest?" , "Solemn petition" , "Solemn supplication (in Christianity)" .)

I've seen this clue in The Times.

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