Crossword puzzle clue "game with disappearing rows"

One who rows, rows, rows the boat

Game with disappearing rows

Web concerns ... and based on six familiar names hidden in rows 1, 4, 12 and 15 of this puzzle grid, what the black squares in those rows symbolize

Rows of rows

Disappearing word?

Chris Cornell "Disappearing ___"

They may be disappearing

Disappearing sea