Nicer to young Germans (6)

I believe the answer is:

kinder

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'nicer' is the definition.
Both the definition and answer are comparative adjectives. Perhaps they are linked in a way I don't understand?

I can't explain the remainder of the clue.

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(Other definitions for kinder that I've seen before include "Scout may follow this" , "More considerate and helpful" , "with less severity" , "German children" , "more pleasant" .)

I've seen this clue in the Evening Standard.

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