Unforeseen drawbacks in eligible bachelors? (7)

I believe the answer is:

catches

I'm a little stuck... Click here to teach me more about this clue!

'unforeseen drawbacks' is the definition.
'catches' can be an answer for 'drawbacks' (I've seen this before). I am not sure about the 'unforeseen' bit.

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for catches that I've seen before include "Snags; door-fastenings" , "Hidden drawbacks" , "Drawbacks, difficulties not readily evident" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.