Clips are short highlights other viewers cut from a stream. Downloading one takes seconds, since clips are already trimmed to length.
On Kick, open the clip and copy its URL — either kick.com/{channel}/clips/{id} or a link with ?clip= in it.
Drop the link into the home page's input box and press download to load the clip's details.
Press download once more. Clips are usually short enough that the file is ready in a few seconds.