Bit of a laugh separating socks -- they clash (2,4)

I believe the answer is:

hi-hats

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

'bit of a' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'laugh separating socks they clash' is the wordplay.
I cannot quite understand how this works, but
'laugh' could be 'ha' and 'ha' is found within the answer.
The remaining letters 'hits' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Telegraph.

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.