Complex sentence: He has been acknowledged as one of the most important Welsh poets of the 20th century, and is noted for his original, rhythmic and ingenious use of words and his image as one of the great modern poets has been much discussed.
Split into simpler sentences: He has been acknowledged as one of the most important Welsh poets of the 20th century, and is noted for his original, rhythmic and ingenious use of words and imagery. Thomas's position as one of the great modern poets has been much discussed.