The term 'Actress Anderson et al.' refers to the actress Lori Loughlin, also known as Lori Anne Loughlin, and her co-stars in the television series 'Full House', which aired from 1987 to 1995. The crossword solution for this term is 'LONIS', which is an acronym for the show's main cast members: Lori Loughlin (L), Bob Saget (O), John Stamos (N), Dave Coulier (I), and Mary-Kate and Ashley Olsen (S).