Possible Clues:

• Old flour ground in shed is resistant to the elements
• Look of gloom amongst company fleet not running
• Not running if conditions are wet
• Blush like a wanton unlikely to run
• Beneath cuckoo's wings (so artful, so wrong!), not about to run
• Show not running with foul actors being awkward
• Treated so that it will not run
• Nasty cut also for indicating non-runner
• Quick to show embarrassment from clothes labelled thus?
• Price about to scowl at sportsmen that won't run