Today’s Saturday Stumper

Today’s Newsday Saturday Stumper, by Frank Longo, is not too tricky. A giveaway gave me a good start: 18-Across, ten letters, “Much-lauded four-Emmy football film of ’71.” Other clues point to answers veiled by thick fog. For instance, 61-Across, ten letters, “Advocate-in-chief.” LEADLAWYER? No.

Three clues that I greatly like: 5-Across, “Common daycare container.” 4-Down, nine letters, “Setting ending in The Artist.” (“Setting ending”? What?) And 20-Down, six letters, “‘A poem begins in delight and ends in __’: Frost.” Poetry FTW!

No spoilers: the answers are in the comments.