Crossword clues for the word: UNDERSTUDY The word UNDERSTUDY has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for UNDERSTUDY Showing 1 to 9 of 9 results Clue(s) Actor waiting for a break Backup Broadway backup Fallback option being given close consideration Minor member of cast often subject to examination Someone acting as a stopgap Sometime substitute. Stand-in actor The second Playboy, for example, is covering someone taking part