This was going well until I hit a brick wall at the last step. After too much grid staring I still can’t see the required shape.
I’ve written the first two words of the three word phrase in the bottom row which gave real words except for 27 down and assumed I would need to erase these same letters, in a thematic shape, from the rest of the grid. I’m now seriously doubting this.
Am I on the right track? A small nudge would be greatly appreciated.