Possible Clues:

• A way of getting water to smallest town in Ireland, if absolutely necessary
• Move slowly behind a bug if absolutely necessary
• A sort of dance in church? If it's absolutely necessary!
• A special measure for water valve when pushed?
• In an emergency with a bugging device, move slowly
• An easy goal centre-half gets with difficulty
• Just a simple score check
• A small knock - small measure for a nipper - might just do for this