I cannot solve the clue for 6ac and need more of a hint. There are a lot of possibilities for the substitution, and not many of them seem to fit the bill so far as the theme is concerned. Is this a sporting reference?
I thought 1 ac was very unfair. Having been on 1ac several times I was wondering what this obscure WT was, and I needed some good fortune to investigate the other interpretation, which is something I know nothing about at all.
No idea about the final step; I hate these word searches.