The most common and most likely answer to this crossword clue is the 5 letter word CUBED
C
U
B
E
D
More clues leading to the result CUBED
Buddy explains!

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 CUBED mean?
CUBED verb- To raise to the third power; to determine the result of multiplying by itself twice.
- To form into the shape of a cube.
- To cut into cubes.
- To use a Rubik's cube.
- Raised to the third power.