The most common and most likely answer to this crossword clue is the 6 letter word CRUMBY
I've seen this crossword clue in The Times
C
R
U
M
B
Y
Buddy explains!

The straight part
We know that "Like bread" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case like bread = crumby.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 CRUMBY mean?
CRUMBY adjective- Crumbly; inclined to break into crumbs.
- Bad; poor.
- Full of crumb or crumbs.
- Soft, like the crumb of bread; not crusty.