The phrase "came heel" can have several synonyms depending on the context and use. One synonym could be the phrase "turned back," indicating that someone or something has changed direction. Another possible synonym is "reversed course," which suggests that the direction or movement has been completely changed and gone back in the opposite direction. "Retraced one's steps" is another possible synonym, indicating that someone has gone back on the path they have previously taken. Lastly, "backtracked" is another possible synonym, implying that someone has gone back over the same ground they had just covered. These synonyms provide alternative ways to express the act of coming back or reversing one's direction.