The most common and most likely answer to this crossword clue is the 7 letter word ARMLOAD
I've seen this crossword clue in The Guardian
A
R
M
L
O
A
D
More clues leading to the result ARMLOAD
Buddy explains!
The straight part
We know that "as much as one can bear" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case as much as one can bear = armload.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 ARMLOAD mean?
ARMLOAD noun- A quantity of things approaching the maximum that could be held or carried with one arm.