Flying __, an Opera by Richard Wagner
Puzzle 20 of Happy Hour Piece of Cake Pack
Question is: Flying __, an Opera by Richard Wagner
and the answer is: DUTCHMAN
Word Meaning:
DUTCHMAN — (carpentry, masonry) A piece of wood or stone used to repair a larger piece, shaped such that it fills as exactly as possible a void or cavity that is to be repaired.
Definitions from Wiktionary.