The most common and most likely answer to this crossword clue is the 10 letter word BEEKEEPING
I've seen this crossword clue in The Times
B
E
E
K
E
E
P
I
N
G
More clues leading to the result BEEKEEPING
Buddy explains!
The straight part
We know that "a task involving many workers" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a task involving many workers = beekeeping.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 BEEKEEPING mean?
BEEKEEPING noun- The practice or profession of keeping and caring for bees.