Complex sentence: Cas is a part of the UK rap & grime scene and he acknowledges his deep respect for the pioneers of the UK rap & grime scene, most notably Dizzee Rascal, Wiley, Skepta, Jme, Professor Green, and Giggs.
Split into simpler sentences: Cas is a part of the UK rap & grime scene. He acknowledges his deep respect for the pioneers of the UK rap & grime scene, specifically Dizzee Rascal, Wiley, Skepta Jme, Professor Green, and Giggs.