did not accept "john lewis advert"........

I wasn't a fan of this grid. As a Chemist, the oxidising agents question made me happy but it's the only group I liked. I think knowing the real name of youtuber "boogie2988" and the corresponding ASCII letter for 65 is a bit much to expect, especially when the appropriate clue instead of boogie would have been Boogie2988. The other one advert is actually called "the other half" and A does not correspond to a because it IS a. A clue cannot be a clue for itself. All these things made the grid very difficult to solve and not as enjoyable as it could have been.