Very very nice
and not too hard: after spotting the substitution, i simply rearranged the residual letters
btw: the best fitting transcript of the speech i found give me 'the answer is spitfire p' !?!
Hmm, that certainly shouldn't have been the case, but I don't really think it makes too much of a difference providing the transposition still works correctly.
Not a very hard cipher, indeed. Every step is quite obvious. I wonder why so few people solved it.
And also, I suggest to change the answer to a string that is not an English word. Otherwise solvers don't even need to work on the transposition cipher part. They only need to find what is the appended letters, and then delete "the answer is" from them, and find anagram.
It wasn't intended to be too difficult. As for the anagram problem, that was always a risk and has prevented me from doing another similar challenge for now.