Yep

I don't think so but call them to make sure.

Restaurant side is open from 9am-9pm 7days the bar is open later. Bar time different certain days.

As far as I'm aware as I have been there numerous times no you wouldn't be able to take your own food or something from another establishment. I would recommend calling ahead as the staff are lovely and seem to be very understanding.

Smart casual. Or how you want people to perceive you..

Yes

For dinner