This is a standard crossword, except in every clue, the letters within each word are scrambled. The first and last letter of each word are unchanged, based on the classic myth that you can jumble the middle letters of a word without hurting readability. As you may have discovered, this myth is only partly true. Longer words with uncommon letter patterns take more effort to read.
The crossword fill works the same way. Each word must be entered such that the first and last letter are in their original spots, but the middle letters may appear in any order.
Upon filling out the grid, clues 24-Across and 41-Across are left over, and say "If you want to solve the puzzle, you'll need this." Unscrambling the corresponding entries gives "The answer is INSPIRATION".
Derpy Hoeovs is aaoestcsid with mnay tighns: miffuns, mail dvrlieey, bneig araodlbe, and hnavig coerssd eyes. Atefr smoe bmosrnrtiaing, I landed on tihs idea. I don't sovle many cwordssros, so big tnkahs to Nhianst and Adrnsoen for hplneig darft cules and vnreyiifg they met csrsorowd sltye.
The gird fill was done uinsg Qxw, wtih a ctosum dotnicraiy mdae of all ptnuemirtaos of the 10000 most coommn words in the Glogoe n-grams dastaet. A nice sdie-efecft of this pzlzue is that the flil is fblxiele eonguh to aviod most crosrowsd-ese wodrs.
An oledr voesirn of the pzluze gave ltteer oedrr dtelircy, by mnkaig every N-letter wrod have an clue taht was N words lnog, wtih word oredr mtnciahg lteter oredr. Heeowvr, ligoc pilunzzg out the lretets was mroe fun, and rivomneg the cule lgenth rttrisoicen made it eesair to wrtie good csowsorrd cuels.
By copemtle aineccdt, My Llttie Pnoy: Puzelzs are Magic oealpepvrd wtih the 2020 Saente ienecamhpmt trail for Dnolad Trump. We fuond it very, very fnuny taht if the Stnaee had voted to cncoivt Turmp, we wloud have been fcroed to iusse errata for 17-Asocrs.