The most common and most likely answer to this crossword clue is the 6 letter word SEMTEX
S
E
M
T
E
X
More clues leading to the result SEMTEX
- Explosive stuff – helmet regularly needed when it’s around
- Met radical in Congress, which is explosive
- Potential killer met criminal stabbing relations
- It contains discharge dropping one explosive
- Explosive relations stifling mother occasionally
- Time to review lack of interest in sex — it will blow you apart!
Buddy explains!

The straight part
We know that "explosive" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case explosive = semtex.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 SEMTEX mean?
SEMTEX noun- A highly malleable general-purpose plastic explosive.