I struggled too. After watching the video here, I could see how certain words in some of the clues have had a W ("for wumbo") replaced with an M ("for mini"), which need to be swapped back. Namely: 14A
14A BERLINSite of a notable mall
1D LOVEROne that moos
5D TUBPlace to mash
28D ADAMActor Mest
. The fact that the central revealed doesn't specify how many or which clues, and that the impacted entries are placed throughout, certainly makes it harder.
Oh they're in the clues.... that makes sense now, I would never have thought to look there once the grid was full. I'm also not confident in my knowledge of European cities to know there ISN'T a Berlin mall! Fun stuff tho