Skittish steed

• Parent, e.g.
• One bringing up children behind the Queen
• Mom or dad, traditionally
• Nervous horse, perhaps
• Parent or scared horse
• Frightened horse
• Nanny, for one
• Parent, for example

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Rearer \Rear"er\ (r[=e]r"[~e]r), n. One who, or that which, rears.