do what elmer does tirelessly crossword

It looks like you're asking about the crossword clue or phrase related to "do what Elmer does tirelessly." A common crossword answer for this clue is "ERR" or "ERRAND" , referring to Elmer Fudd, a classic cartoon character who is known for tirelessly hunting Bugs Bunny, often "erring" or making mistakes in his pursuit. Sometimes crossword clues about Elmer Fudd relate to "hunting" or "chasing." Could you provide more context or confirm if this is from a crossword puzzle? That way I can help identify the exact answer.