Possible Clues:

• Birth of dwarf?
• Glad plane is reaching time for arrival
• Birth of a child
• One of the Seven Dwarfs is the second person to get good books for birthday
• Father is between hectare and yard with occasion for birth
• Haven't the priest, with you all inside for the birth
• Royal wedding, for example, or its outcome?
• Facetious euphemism for the birth of a baby
• Ma's joy - envy the pa, somehow keeping quiet!