The most common and most likely answer to this crossword clue is the 11 letter word BRICKLAYERS
I've seen this crossword clue in The Guardian
B
R
I
C
K
L
A
Y
E
R
S
Buddy explains!
The straight part
We know that "Jobbers in bonds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jobbers in bonds = bricklayers.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 BRICKLAYERS mean?
BRICKLAYERS noun- A craftsman who builds walls and suchlike out of bricks.