Increasingly cruel to older British, appallingly (14)

I believe the answer is:

bloodthirstier

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'increasingly cruel' is the definition.
I can't judge whether this defines the answer.

'to older british appallingly' is the wordplay.
'appallingly' is an anagram indicator (I've seen this in other clues).
'to'+'older'+'british'='toolderbritish'
'toolderbritish' with letters rearranged gives 'BLOODTHIRSTIER'.

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I've seen this clue in The Times.

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