Crossword clues for the word: OAKAPPLE The word OAKAPPLE has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for OAKAPPLE Showing 1 to 6 of 6 results Clue(s) Abnormal tree growth. Gall shown by Greek character, cycling during rock band's comeback Gall wasp's lump Growth on an oak tree (2 words) Spongy tree gall Tree gall