An astronomical figure (5)
I believe the answer is:
orion
'figure' is the definition.
(I have seen 'Heavenly figure' mean 'orion' so perhaps 'figure' could also mean 'orion')
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for orion that I've seen before include "Star" , "Constellation with seven bright stars" , "Constellation in the form of a belt" , "He hunted" , "Rigel constellation" .)