Complex sentence: Later that year, Napier joined Scottish Television as a trainee make-up artist and remained there for 13 years, eventually gaining the position of make-up designer before leaving in 1987 to become freelance.
Split into simpler sentences: Later that year, Napier joined Scottish Television as a trainee make-up artist. She remained there for 13 years and gained the position of make-up designer before leaving in 1987 to become freelance.