Young Germans seem more considerate (6)
I believe the answer is:
kinder
'more considerate' is the definition.
('kind' can be similar in meaning to 'considerate')
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for kinder that I've seen before include "More considerate and helpful" , "More agreeable" , "Scout may follow this" , "more pleasant" , "with less severity" .)