The most common and most likely answer to this crossword clue is the 7 letter word PITFALL
I've seen this crossword clue in The Times
P
I
T
F
A
L
L
More clues leading to the result PITFALL
- Unforeseen difficulty in mine before collapse
- Become tiresome about computers following unexpected difficulty
- Suggestion taken up before autumn problem
- Lift pal collapsing — into this?
- Difficulty is mine, following everything
- Trap attractive letter writer for Spooner
- Catch it in carp’s close season
- Lean the wrong way, drop a catch
- Spooner’s to install curtain? It’s a potential danger
- Danger when PM misses Brexit climax and collapse
Buddy explains!

The straight part
We know that "Trap" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case trap = pitfall.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 PITFALL mean?
PITFALL noun- A potential problem, hazard, or danger that is easily encountered but not immediately obvious.
- A type of trap consisting of a concealed hole in the ground: victims fall into the hole and are unable to escape.
- An antipattern.