Possible Clues:

• Own about a pound then make 50p?
• Create icy detachment with initial change of temperature, and split
• Split from husband, heading off to give birth in cowshed
• Share a hole
• Call taxi reportedly ringing number in Split
• Cut down the middle
• Some Apocryphal verses cut by fifty percent
• Robust, guarding against split
• Split (in two)
• Hard breathing after removing one's tie