This is like drawing teeth - not enjoying it; I particularly dislike clues like 11,20,3,14 - I feel as if I'm being short-changed on clues!
On the point of giving up with about 1/3 done, but before I do, a hint for 1d might get me going again (the surface is fairly typical!)
I produce powerful retro Affleck vehicle that is (cutting speed) still quite hard to see (15)
P 6th letter