Complex sentence: Crick lives with his partner Lucy Hetherington, the daughter of the former "The Guardian" editor Alastair Hetherington, and they have a daughter, Isabel (b.2006).
Split into simpler sentences: Crick lives with his partner Lucy Hetherington, the daughter of Alastair Hetherington, a former editor of "The Guardian". They have a daughter, Isabel (b.2006).