Humorous ending with hater

ADE

Think of a lemony suffix that might leave a bitter critic feeling sour.

The clue plays on the word "hater" by taking its last three letters—"hat" plus "er"—and then swapping "er" for a humorous twist. "Ade" sounds like "aid" but is short for "lemonade," a lighthearted drink, making the "ending" both literal (last letters) and punny. Think of it as chopping off "hater" and giving it a silly, refreshing finish.