Swanky

POSH

Think of a British term for something fancy or high-class that starts with "P."

"Swanky" is a casual way to describe something fancy or upscale, and "posh" is the perfect British slang term for that idea. The clue plays on the shared meaning—both words suggest luxury or high class, with "posh" being the more concise, crossword-friendly answer. It’s a straightforward synonym swap, no tricks or wordplay involved.