Possible Clues:

• Pants measurement
• Pants leg measurement
• Extent, duration
• Distance member goes round north -- this is to be cut
• Liar leaves all-nighter for a period of time
• A bit of swimming in Scottish port no good for one
• Term of Liberal and then changes around Government
• Inseam measurement
• Lieutenant finds hydrant over little England from a distance
• 120 yards, for a football field