The most common and most likely answer to this crossword clue is the 6 letter word CHUNKY
I've seen this crossword clue in Independent
C
H
U
N
K
Y
Buddy explains!
The straight part
We know that "in big pieces" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in big pieces = chunky.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 CHUNKY mean?
CHUNKY adjective- Having chunks.
- (of a person) Fat.
- Of a cat: having a large, solid bodyline.
- A sport or game played by the Cherokee and other Native Americans in the Carolinas, which involved rolling stone disks across the ground and throwing spears at them in an attempt to land the spear as close to the stopped stone as possible.