Guardian Genius 200
Last two! although I am not sure of a few as I can think of alternatives for some.
6d (a straight cryptic clue - no manipulation)
"Old preacher's lectern made from Wilde's cooler seat?" (7,3)
I have _ E _ D _ _ _ / P _ W
15a (a manipulated answer)
"Pipe outside school" (8)
I have T _ A _ _ _N _
With 15a there is no definition and the solution to the parsing then needs a "compass point" removing from the parsed answer to provide the input word, which is a real word. Compass points can be NSEW or NE, NW, SE, SW etc. Therefore the original answer parses to either 9 or 10 letters.
Many thanks, lets hope this goes in Crosswords!