To embed a Soundcloud clip into a post, follow these steps:

1. Go to Soundcloud and find the clip you wish to post.  Click the URL (address) of the page featuring the clip and Copy
2. In your post, position the cursor where the clip is to be placed and then click the Soundcloud button  and Paste the URL into Track URL
3. Then Save (the full clip won't appear until you do this)

The result should look something like this:

https%3A//soundcloud.com/rothwell-official/hurricane

If you don't have a Soundcloud account and don't want to create one, please ask a mod to post it for you.