Tic Tac Tow

Explanation: There are four rows that contain two members of a trio- 13A, 14A. The third member is in the grid, but one of its letters is misspelled- 9A. The other three rows are 26A, 29A, 49A / 45A, 47A, 66A / 67A, 68A, 43A. The first letters of the misspelled words are TYPO, the meta answer. Just for fun, the first letters of the clues for the misspelled words are what the letters should be.

Well done, Lars. I saw EARTH WIND and...UKES so thought I needed to be looking at that third wrong word in the row. Next saw HOOK LINE and PATCH. But LIONS TIGERS didn't have a third word in the row, which prompted me to look elsewhere. Then I understood what was happening. :D Nice work!

This took me a while because I was trying to find 3 letters in a row to make Tic Tac Toe, but with the third letter missing. There were way too many of those. Then I saw Earth, Wind and noticed Tire. That's when I knew I was on the right path. Nice meta. Thanks, Lats!

Very cool. Spun my wheels for a while until I noticed EARTH WIND TIRE.

Unlike most, it was LIONS and TIGERS that got it for me, along with the MGM hint.