Possible Clues:

• European capital set up with middle man
• Raised a cheque, not having used all capital
• Equipment needed by a capital city
• Largest city of Latvia
• Latvian Academy of Sciences home
• A giro account returning a little capital
• Capital on its own gulf
• A young lady, short of pounds, turns to the City
• Latvian is spoken here
• Drilling apparatus adjacent to a port