Possible Clues:

• Cut, touching blooming exposed edge of rock
• Unfashionable hairstyle making sudden appearance
• Is this what farmer says to produce at end of season in rock formation?
• Unacceptable prune's hard, protruding part
• Unfashionable haircut rocks, on the surface
• E.g. part of vein exposed, cut, or damaged in operation
• Exposed rock group (banned) runs into policeman
• The sort of harvesting, perhaps, that makes one sound bolder