Possible Clues:

• This knows one's turned up, by the sound of it
• Turned up in fashionable eastern trousers
• Turned up in a rare trousseau
• Snub old-fashioned American with vacant smile
• How the 5 down are 1 down
• Sounds as if one knows how it turns up
• The way 29 across turned up (9)
• That's up at last on the face of it
• US resort abandoned before European turned up in Nice
• Amazingly true: roses turned up!