The most common and most likely answer to this crossword clue is the 8 letter word SOCIETAL
I've seen this crossword clue in The Sunday Telegraph
S
O
C
I
E
T
A
L
Buddy explains!
The straight part
We know that "Relating to community" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case relating to community = societal.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 SOCIETAL mean?
SOCIETAL adjective- Of or pertaining to society or social groups, or to their activities, customs, etc.