Crossword clues for the word: OLEASTER The word OLEASTER has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for OLEASTER Showing 1 to 9 of 9 results Clue(s) European flowering tree Evergreen shrub also called the Russian olive Fragrant shrub of Europe. Ornamental shrub of Eurasia Russian olive Shrub also known as Russian olive Shrub with olivelike fruit Tree that's almost mature associated with Christian festival Wild olive