A nice, hard Friday. We fought this one all the way, but happily got through it. Clues like 2D: Record glimpsed on Norman Bate's Victrola (EROICA) and 6D: Certain rate-hike circumvention (FOREVERSTAMP) had us worried, but slowly the crosses fell, and each was inferable in the end.
Luckily, Frannie knew LIBRARIAN (56A: Profession for Laura Bush before the White House), and took a guess at ANASTASIA (59A: "Cinderella" stepsister), which helped us gain a foothold, and from there we climbed up the grid.
It's been a while since we've seen Barry Silk's name, and when we do we expect great things. Brad Wilber we have less of a handle on, but we'll be watching him more closely from now on, because this puzzle was lovely. So much great fill - IRONHORSE (15A: Locomotive), DONNAREED (17A: 1950s-'60s sitcom headliner), WIPEOUTS (12D: Many "Jackass" stunts) (do they really plan the wipeouts? or are they just a result of bad execution?), and BRAISE (42D: Cook, as swiss steak). Frannie didn't love YAWPS (10A: Complains loudly), and we'd never heard of AAFAIR (43D: Erle Stanley Gardner pseudonym), or the WYCHELM (24D: Common British Isles shader), but the crosses were all fair.
Speaking of the WYCHELM, there was quite a cluster of proper names over in that area, but again, nothing unfair. Even though we started with MAINline for MAINROAD (34D: Artery), and ONtarget for ONCOURSE (35D: Not going astray), things eventually worked themselves out.
This is just what we look for on the weekend, a puzzle that challenges. This one delivered.