Caught in bombardment, general's sacred object (10,4)

I believe the answer is:

fishermans ring

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'sacred object' is the definition.
The definition suggests a singular noun which matches the answer.

'caught in bombardment general's' is the wordplay.
'caught in' is an insertion indicator.
'bombardment' becomes 'firing' (I can't justify this - if you can you should give a lot more credence to this answer).
'general's' becomes 'Sherman's'.
'firing' going around 'shermans' is 'FISHERMANS RING'.

Can you help me to learn more?

(Another definition for fishermans ring that I've seen is " seal of approval".)

I've seen this clue in The Times.

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