Possible Clues:

• Hamelin's flutist
• Was at Floyd's "Gates of Dawn"
• You have to pay him 22/7 for each
• Scots musician
• Big name in general aviation
• 'Liam O'Flynn or Seamus Ennis, say (5)'
• John —, 20th century English artist
• Highland instrumentalist
• He plays pibroch first in support
• Producer of Pibroch, or the Walford Gazette?