Possible Clues:

• One way out of a contract
• Legal ambiguity Privy Council's last hope, bizarrely
• Circuit complete? Not at first — a small gap
• Way out from wind tunnel
• See work complete, rejecting wife's opening
• Ambiguity (in rules) through which one can avoid punishment
• Means to escape pressure, on short holiday in SW resort
• Flying manoeuvre left in implement for means of escape
• Rules ambiguity
• Kitty, taken aback by tricky situation, discovers way to escape