Lynn is the four letter answer to the crossword clue for Coal Miner's Daughter. The term Coal Miner's Daughter refers to a 1980 biographical musical drama film directed by Michael Apted. It stars Sissy Spacek as Loretta Lynn, a country music singer-songwriter who rose to fame in the 1960s and 1970s. The film follows Lynn's life from her childhood in a Kentucky coal mining family through her rise to stardom. Lynn was portrayed in the film by actress Beverly D'Angelo.