Based on the clue 'a solid structure built against a wall to support ...', what is the answer?

Based on the clue 'a solid figure having 10 sides', what is the answer? Based on the clue 'a solid figure with 7 faces 11 letters', what is the answer? Based on the clue 'a solid fruit core or a cavity in the ground', what is the answer? Based on the clue 'a solid shape with 6 identical faces only', what is the answer? What is referred to by 'a somewhat shapeless dress'? Based on the clue 'a son of either hermes or dionysus priapus was a f...', what is the answer? Based on the clue 'a son of isaacs teetertotters', what is the answer? Based on the clue 'a son of uranus this greek god was the personifica...', what is the answer?