The most common and most likely answer to this crossword clue is the 4 letter word TEEM
I've seen this crossword clue in The Guardian
T
E
E
M
More clues leading to the result TEEM
- Rain heavily as hunting party turning up
- Get together in turn and be in large numbers
- Bucket down, causing hunt assembly to retreat
- Fall heavily? Proper to get up
- Swarm‘s come together, moving north
- On return, encounter swarm
- Heard sports group swarm
- Assemble round bucket
- Collaborators said to be numerous
- Come down heavily, when gathering of hunters is set up
Buddy explains!
The straight part
We know that "Swarm" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case swarm = teem.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 TEEM mean?
TEEM verb- To be stocked to overflowing.
- To be prolific; to abound; to be rife.
- To bring forth young, as an animal; to produce fruit, as a plant; to bear; to be pregnant; to conceive; to multiply.
- To empty.
- To pour (especially with rain)
- To pour, as steel, from a melting pot; to fill, as a mould, with molten metal.
- To think fit.