Answer:

rearer

AnswerCrossword Clue
REARERParent, e.g.
REARERFrightened horse, perhaps
REARERParent
REARERParent, for example
REARERBreeder.
REARERBuilder.
REARERFosterer.
REARERNurturer.
REARERSkittish steed
REARERFrightened horse
REARERNanny, for one
REARERParent or guardian
REARERMom or dad, traditionally
REARERParent or scared horse