Go ___ over

APE

Think of a phrase that means to imitate someone wildly, often used when someone is copying another's actions in an exaggerated way.

The phrase "Go ape" is a common slang expression meaning to become wildly excited or lose control, often used in contexts like "The crowd went ape when the band took the stage." Here, "over" is just a preposition tacked on to complete the phrase, making the full answer "APE." The clue plays on the idiom’s literal meaning while keeping the wordplay straightforward—no hidden tricks, just a familiar saying split for the crossword.