"Alter, fraudulently that is, earlier 8th avenue article. Take a treat
at such time as lawyer is point-first - the rest is poultry.
Reader! Why, we hear accounts' core again lacks a profit!
Permutation, without morals first, hurts standing."
It seems the first line is the weakest part of the puzzle, so I will offer a little extra direction. The whole first line is a single clue, (4,1,6). The definition is a little loose, and is better taken as a confirmation of the solution rather than an alternate route towards it. Do not pay too much attention to the punctuation. Just because the words "fraudulently that is" appear within the same subordinate clause as written in the clue, it does not mean that they fit together in the solution. In fact, "alter fraudulently" gives one part of the solution and "that is" gives another. Together they make a single word.
"Alter fraudulently" isn't "doctor", but it is another profession.