Possible Clues:

• Shaped end of piece of wood for slotting into a hole.
• For this there's more - 'tis thesound of it
• One saw this with X upon it
• Board projection
• Outstanding piece of carpentry?
• Saw that this was the beginning and end of 18 down on
• Saw a musical group making a comeback
• Kind of saw
• Saw the number on it
• Saw one sticking out there with double figures on the end (5)