The most common and most likely answer to this crossword clue is the 6 letter word SNARES
I've seen this crossword clue in The Guardian
S
N
A
R
E
S
More clues leading to the result SNARES
Buddy explains!

The straight part
We know that "Catches/Catches" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case catches/catches = snares.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 SNARES mean?
SNARES noun- A trap (especially one made from a loop of wire, string, or leather).
- A mental or psychological trap.
- A loop of cord used in obstetric cases, to hold or to pull a fetus from the mother animal.
- A similar looped instrument formerly used to remove tumours etc.
- A set of stiff wires held under tension against the lower skin of a drum to create a rattling sound.
- A snare drum.
- To catch or hold, especially with a loop.
- To ensnare.