The most common and most likely answer to this crossword clue is the 7 letter word ENTRAPS
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More clues leading to the result ENTRAPS
Buddy explains!

The straight part
We know that "Catches" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case catches = entraps.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 ENTRAPS mean?
ENTRAPS verb- To catch in a trap or snare.
- To lure (someone), either into a dangerous situation, or into performing an illegal act.