The most common and most likely answer to this crossword clue is the 6 letter word CARING
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Buddy explains!

The straight part
We know that "Kind" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kind = caring.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does CARING mean?
CARING verb- To be concerned (about), to have an interest (in); to feel concern (about).
- (polite) To want, to desire; to like; to be inclined towards.
- (with for) To look after or look out for.
- To mind; to object.
- The act of one who cares.
- (of a person) Kind, sensitive, empathetic.