Guides
The questions that come up between having an idea and having something to sell, answered against the actual regulation or register rather than someone else's blog post.
Start here How to start a clothing brand in the UK Six stages from idea to first drop, each with what it costs, how long it takes and the one law that applies. Tick what you have done; it stays in your browser.Choosing a name you are allowed to keep.
What has to be on the garment, and what only looks like it does.
The two free tools these guides refer to: brand name checker and care label generator.