The most common and most likely answer to this crossword clue is the 4 plus 6 letter word STAG BEETLE
S
T
A
G
B
E
E
T
L
E
More clues leading to the result STAG BEETLE
- Evil test with beagle is something some folk find creepy
- Head of science project accepting name for insect
- Six-footer women not allowed to scamper
- Eg, seat belt adjusted for six-footer
- Leg beast broke tackling alien insect
- Step around vegetable with tip of leaf showing large insect
- Get salt sprinkled, catching one insect and another
- Step round plant and large insect
- One insect, or another with small mark on, let free
- Male only wants car that’s big of its kind and aggressive-looking
Buddy explains!

The straight part
We know that "large insect" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case large insect = stag beetle.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 STAG BEETLE mean?
STAG BEETLE noun- A large black beetle with a pair of strong mandibles.