Crossword No. 4147: OZ and WR by Theod

Symmetry: 90-degree

Size: 169 cells

First and last letters extra words in clues, either Playfair-encoded or en clair, give the definition of “dvandva” from The Chambers Dictionary, with references to the puzzle substituted for its examples of “tragicomedy” (the Playfair codeword) and “bitter-sweet” (hidden in the grid).