The most common and most likely answer to this crossword clue is the 4 plus 2 plus 3 letter word ACTS OF GOD
I've seen this crossword clue in The Guardian
A
C
T
S
O
F
G
O
D
Buddy explains!
The straight part
We know that "(they don’t allow for compensation)/(they don’t allow for compensation)" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case (they don’t allow for compensation)/(they don’t allow for compensation) = acts of god.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.