Crossword Puzzle Drain of resources

Clue: Drain of resources

Drain, as of resources (SAP with 3 letters)
Sidewalk stand offering (ADE with 3 letters)
In an offhand manner (CASUALLY with 8 letters)
BBC offering (CHATSHOW with 8 letters)
Salon chain that offers scarves along with hair extensions? (BOAANDWEAVE with 11 letters)
Poor drainage area (MOOR with 4 letters)
Item in an office (DESK with 4 letters)
Cook's offering (TOUR with 4 letters)
Office title abbr. (ASST with 4 letters)
Sworn __: given the oath of office for (INAS with 4 letters)