The most common and most likely answer to this crossword clue is the 3 plus 4 letter word LIP BALM
I've seen this crossword clue in The Guardian
L
I
P
B
A
L
M
More clues leading to the result LIP BALM
Buddy explains!
The straight part
We know that "Appreciated by tender kissers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case appreciated by tender kissers = lip balm.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.