Alternative to Gain

TIDE

["Think of a laundry product that shares its name with the natural rise and fall of ocean water."]

"Alternative to Gain" hints at a laundry detergent brand that sounds like "gain" but isn’t it. "Tide" is another popular detergent, making it a direct competitor or alternative. The clue plays on the idea of swapping one brand for another, relying on the solver’s knowledge of household products. It’s a straightforward substitution with no hidden wordplay.