Crossword clues for the word: INSTAR The word INSTAR has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for INSTAR Showing 1 to 9 of 9 results Clue(s) "Adorn, in a way" Adorn with certain figures. An insect between molts Bestud Between-molts stage Bug between molts Insect stage between moltings. Stage for an insect between molts Stone of fine grit.