Accordingly, returned flag as an object of worship (6)
I believe the answer is:
osiris
'an object of worship' is the definition.
(Egyptian god)
'accordingly returned flag' is the wordplay.
'accordingly' becomes 'so' (synonyms).
'returned' shows that the letters should be reversed in order.
'flag' becomes 'iris' (type of iris flower).
'so' written backwards gives 'os'.
'os'+'iris'='OSIRIS'
'as' is the link.
(Other definitions for osiris that I've seen before include "Egypt. god of dead" , "Egyptian god, father of Horus" , "Egyptian god of the underworld" , "God, husband of Isis" , "once highly esteemed by Egyptians" .)