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The French king and queen once snubbed a singer of 2 (7)

Ross

I believe the answer is:

lehmann

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'a singer of 2' is the definition.
I can't tell whether this definition defines the answer.

'the french king and queen once snubbed' is the wordplay.
'the french' becomes 'le' ('the' in French).
'king' becomes 'hm' (short for His Majesty).
'and' means one lot of letters go next to another.
'queen once' becomes 'anne' (Queen Anne, h8th-century queen).
'snubbed' means to remove the last letter (could historically mean cutting the end off).
'anne' with its final letter removed is 'ann'.
'le'+'hm'+'ann'='LEHMANN'

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