Crossword Puzzle Marble marking

Clue: Marble marking

Marking in marble (VEIN with 4 letters)
To-do list markings (TICKS with 5 letters)
Symbol marking England's National Trails (ACORN with 5 letters)
Kid's marble (e.g. IMMIE with 5 letters)
Hunks of marble (SLABS with 5 letters)
You can't enjoy this if you've lost your marbles (CHINESECHECKERS with 15 letters)
Switch markings (ONOFF with 5 letters)
Unusual shoebox marking (EEEE with 4 letters)
Attention-calling marking (NOTABENE with 8 letters)
Not marbled, say (LEAN with 4 letters)