Santa, per Moore is a term used to describe Santa Claus. It is derived from the poem 'A Visit from St. Nicholas' written by Clement Clarke Moore in 1823. The poem is also known as 'The Night Before Christmas' and is one of the most famous works of literature in the English language. The crossword solutions for the term Santa, per Moore are ELF, which stands for 'elves', and MOORE, which is the surname of the author of the poem.