Possible Clues:

• Changing 13 no use on a city in Spain
• Largest Spanish port
• Where Banco Real goes bust?
• Span. City
• Summer Olympics site, 1992
• They stand between Chelsea and a place in the Champions League quarter-finals
• They are at home at the Neu Camp
• A cheer for a matador by grouch returning from Spanish city
• 1 down's city backing an expression of local approval with a sign
• A Catholic involved in rebuilding a noble city