Gold used by artist inspiring Golden Dawn (6)
I believe the answer is:
aurora
'dawn' is the definition.
(I know that dawn can be written as Aurora)
'gold used by artist inspiring golden' is the wordplay.
'gold' becomes 'Au' (Au is the chemical symbol for gold).
'used by' says to put letters next to each other.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'inspiring' is an insertion indicator.
'golden' becomes 'or' ('or' is the name for gold in heraldry).
'ra' going around 'or' is 'rora'.
'au'+'rora'='AURORA'
(Other definitions for aurora that I've seen before include "dawn arrives" , "Dawn (literary)" , "Light phenomenon of polar regions" , "Coloured light in the sky" , "Roman goodess of the dawn" .)