Ornament created anew holds nothing (8)
I believe the answer is:
decorate
'ornament' is the definition.
(synonyms)
'created anew holds nothing' is the wordplay.
'anew' indicates anagramming the letters.
'holds' indicates putting letters inside.
'nothing' becomes 'o' (looks like zero - 0).
'created' is an anagram of 'decrate'.
'decrate' enclosing 'o' is 'DECORATE'.
(Other definitions for decorate that I've seen before include "Beautify by additions" , "Add ornament, colour, etc." , "Add ornamentation to" , "Honour" , "Make more attractive" .)