The most common and most likely answer to this crossword clue is the 6 letter word COBRAS
I've seen this crossword clue in The Guardian
C
O
B
R
A
S
More clues leading to the result COBRAS
- Company supports venomous types
- Dangerous creatures in lingerie business, at first
- Firm supports for occupants of snake pit?
- Firms maintaining support for those striking when angry?
- They could be spitting – Egyptian king shows firm support for women
- Business supports poisoners
- Venomous types given firm support by Society
- Company supporters? Slippery creatures
Buddy explains!

The straight part
We know that "Dangerous creatures" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dangerous creatures = cobras.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 COBRAS mean?
COBRAS noun- Any of various venomous snakes of the family Elapidae.