The most common and most likely answer to this crossword clue is the 8 letter word ANODYNES
I've seen this crossword clue in The Guardian
A
N
O
D
Y
N
E
S
More clues leading to the result ANODYNES
Buddy explains!
The straight part
We know that "They avoid controversy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they avoid controversy = anodynes.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 ANODYNES mean?
ANODYNES noun- Any medicine or other agent that relieves pain
- A source of relaxation or comfort