Guardian Prize

[RogerBear]

"24 across today embodies puzzle's point (4)."

I have - E - T. 24 across is BUTT.

After much help from the other answers here, I have finally come to the end of this rather distasteful puzzle—yes, I know it is in aid of charity, and am surprised at my own distaste—and have had my fill of lavatorial puns, but this one shortie remains.

[Lie-in King]

Seat - 'Sat(urday)' (embodying; containing) '(puzzl)e' (e[ast]; point)

[scorpiojo]

Seat - Sat(urday) around E(ast)

[RogerBear]

Thanks to both. Since I am late completing this, today is SUN, though I downloaded it on FRI. Anyway, never thought of SAT. I rather thought that "puzzle's point" might be thematic—but enough of that already! RB.