Spaces to be filled, say

The answer to the crossword question “Spaces to be filled, say” is GAPS. The word “gaps” typically refers to empty spaces or openings that need to be filled. In the context of a crossword puzzle, the spaces that need to be filled with letters can also be referred to as “gaps.” This term is commonly used by crossword enthusiasts, as they work to fill in the blanks and complete the puzzle. Overall, “gaps” is a fitting answer to this crossword question because it accurately describes the spaces that need to be filled in order to solve the puzzle.