Crossword Puzzle Runner on snow

Clue: Runner on snow

One familiar with snow has runner stuck in a type of rock (6) (D with 1 letters)
Snow runners (SKIS with 4 letters)
Snow runner: Var. (SKEE with 4 letters)
Runner in the snow (MONOSKI with 7 letters)
Runners on the snow (SLEDS with 5 letters)
Snow runner (e.g. BOARD with 5 letters)
Snowmobile runners (SKIS with 4 letters)
Online bulletin board runner (SYSOP with 5 letters)
Many online forms, for short (PDFS with 4 letters)
Ongoing quarrels (FEUDS with 5 letters)