Occasion for wreath-laying made mercenary angry with bishop (11,3)

I believe the answer is:

remembrance day

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'occasion for wreath-laying' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'made mercenary angry with bishop' is the wordplay.
'angry with' indicates an anagram.
'bishop' becomes 'B' (abbreviation for bishop in chess).
'made'+'mercenary'='mademercenary'
'mademercenary' with its letters anagrammed with 'b' can make 'REMEMBRANCE DAY'.

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(Another definition for remembrance day that I've seen is " solemn occasion - with 26d".)

I've seen this clue in The Times.

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