Light from planet, here aligned (8)
I believe the answer is:
ethereal
'light' is the definition.
(thesaurus)
'from planet here aligned' is the wordplay.
'from' indicates the answer is hidden within the clue.
'ETHEREAL' is hidden in the letters of 'planet here aligned'.
(Other definitions for ethereal that I've seen before include "Airy or supernatural" , "Insubstantial or heavenly" , "Spiritual" , "Airy, celestial" , "Light and delicate in appearance, heavenly" .)