Possible Clues:

• Plop down on a sofa
• Sand, perhaps, notwithstanding
• Notwithstanding this, the opposite of 27 across
• Order to Rex
• It is up to what one did before one 6 down
• Avoid, with ''out''
• Notwithstanding this, it is back to front
• House-__
• Word to a dog
• Entreaty for Rover