
1) Australian young adult novel 2) Legendary progenitor
Found on
https://www.crosswordclues.com/clue/deucalion

In Greek mythology, Deucalion (ən; Δευκαλίων) was the son of Prometheus; ancient sources name his mother as Clymene, Hesione, or Pronoia. The anger of Zeus was ignited by the hubris of the Pelasgians, so he decided to put an end to the Bronze Age. Lycaon, the king of Arcadia, had sacrificed a boy to Zeus, who was appalled by this savage ...
Found on
http://en.wikipedia.org/wiki/Deucalion

in Greek legend, the Greek equivalent of Noah, the son of Prometheus (the creator of humankind), king of Phthia in Thessaly, and husband of Pyrrha; ...
Found on
http://www.britannica.com/eb/a-z/d/37

In Greek mythology, the son of the Titan
Prometheus, king of Phthia, and an equivalent of
Noah in the Old Testamen...
Found on
http://www.encyclo.co.uk/local/20688

In the Greek version of the flood story Zeus sent a terrible flood. Deucalion built an ark and survived with his wife Pyrrah.
Found on
http://www.localhistories.org/greekmyths.html

In Greek mythology, Deucalion was the son of Prometheus. Warned by his father of a coming flood,
Found on
http://www.probertencyclopaedia.com/browse/D1D.HTM

a son of Prometheus who survived the Deluge to regenerate the human race.
Found on
https://www.infoplease.com/dictionary/deucalion
No exact match found.