The most common and most likely answer to this crossword clue is the 8 letter word APIARIES
I've seen this crossword clue in Financial Times
A
P
I
A
R
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E
S
More clues leading to the result APIARIES
Buddy explains!
The straight part
We know that "lots of social workers here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lots of social workers here = apiaries.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 APIARIES mean?
APIARIES noun- A place where bees and their hives are kept.