Related Clues:

• The one that's not open could start to mature like wine, by the start of the year
• Less than candid
• Skilled at dodging
• There's no limit to legitimacy of one who is guarded
• Wary when star of US gangster movies drops in at last
• Secretive, a bit like a 20th-century avant-garde composer?
• Frank's opposite number gradually rising through banks in City
• Shrewdly guarded
• Secretive egret regularly hides in island