The most common and most likely answer to this crossword clue is the 6 letter word CHANCY
I've seen this crossword clue in The Daily Telegraph
C
H
A
N
C
Y
More clues leading to the result CHANCY
Buddy explains!

The straight part
We know that "Dicey" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dicey = chancy.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 CHANCY mean?
CHANCY adjective- Uncertain, risky, hazardous
- Subject to chance; random
- Lucky; bringing good luck