It's good that someone else has already answered this for Lit because I do Combined on AQA and there's a little bit of creative writing but not much- for paper 1 (year 12 stuff) you study for the literature side a collection of poems and a novel, ours were Seamus Heaney and The Handmaid's Tale but it might change depending on your college/sixth form, and for the language side an anthology of texts about Paris from different genres (memoir, transcript, advert etc)
For paper 2 (year 13, I finished the last bit of exam content recently) you study a novel for the 're-creative writing' and a play, ours were The Great Gatsby and A Streetcar Named Desire but again it depends- the creative writing bit is Gatsby and you have to re-write a section somewhat in the author's style while also giving original insights then write a commentary on it- so not very similar to GCSE but it is creative to some degree
Then there's coursework worth 20% of the grade (2500-3000 words) that is about comparing the way a literary and a non-literary text present any theme you choose, I found this really fun because there's so much scope for choice
The main difference I believe between combined and lit is that in combined we analyse spoken language features and word classes as well as literary features and semantics/themes whereas lit is less based on word classes