Very cool!
The wordplay is great for 4D and 23D; cool surfaces 11A and 26A. Good noun/verb switching in 19A. IMO some definitions could be tightened up (5D, 16D, 18D, does 23A need a '!'). Careful with targeted fodder 17A, and 3D/13A/21D/22A are imo a little sketchy for wordplay