Mystery city

[Chrysaor]

www.quizlist.com is running a series of clues to a mystery city. Small prize, that doesn't really matter, but I'd be interested to see if anyone's guess is the same as mine. Here's the q's:
1. The city has expanded to the West - no-one ever says they come from the East.
2. Southsiders look down on Northsiders.
3. A river runs through it.
4. A prominent football team in this city wear blue.
5. This was a picture of a seal in the water and the clue was that he was a native of the city, but not in captivity.
6. A popular four-piece 'musical combo' originated here.
7. An area of the city was mentioned in a UK Number 1 single of the late 70s.
8. Two areas of the city have the same names as areas of London.
9. A well-known sportsman from this city had a disappointing 'half' in September.
10. The commonest nickname for natives of this city derives from their alleged association with a particular flag.
11: The most popular tourist attraction in the city is a house, but possibly not the kind of house you would first think of.
12: The city has a light rail system with 36 stops on it.
13: The city's oldest pub is named after an ancient prophetic device which apparently could answer every question you posed it.

[Fibonacci]

multiplying by two!

[Chrysaor]

I think he's got it...

[Clayhead]

12 could be a weapon?
13 would be bold?

[Chrysaor]

My thoughts exactly, Clayhead. And No. 7 has a number in it.