Possible Clues:

• Bound to get the slimiest noses
• Restrict — term
• Curtail
• Control turned on taking motorway
• Did land around motorway qualify?
• Learner's self-important claim, as much as one can take
• Hem in 12, not quite the thing
• ''The sky's the ___!''
• The sky, it's said
• Extreme reached by Kipling, before renewal