Possible Clues:

• Repairer
• One of the first to stay up straight, from what we hear
• Just say he's an old-fashioned craftsman
• Guggenheim Museum architect
• Name associated with 25- and 59-Across
• Frank Lloyd ... (aviator)
• The ...... brothers pioneered aeroplane flight
• One makes things, plays say
• Aviator is due at hearing
• Giller Prize winner 2001