Crossword Puzzle Stable measurement?

Clue: Stable measurement?

Stable measurement (SPAN with 4 letters)
It has one stable isÃ³topo (ORO with 3 letters)
Stable supplier (SADDLER with 7 letters)
Stabler, once (RAIDER with 6 letters)
Shoe-store measurements (WIDTHS with 6 letters)
Current measurement (e.g. AMP with 3 letters)
Stable babies (FOALS with 5 letters)
Stable item (e.g. OAT with 3 letters)
Unit of measurement consisting of 72 days, in modern-day slang (KARDASH with 7 letters)
Area measurement (WIDTH with 5 letters)