Hi Druh. 4A parses as 2, 1, 1. ‘Everyman’, i .e. the setter, gives you the first two, the others are alternate letters. Def is stingy.
8A is a philosopher - an anagram.
I also laughed at 4D, but I don’t get the ‘key’ part of 20D, even though the answer is clear.
Happy Sunday, all