Enticing everyone with universal jewellery (8)
I believe the answer is:
alluring
'enticing' is the definition.
(synonyms)
'everyone with universal jewellery' is the wordplay.
'everyone' becomes 'all' (I've seen this before).
'with' means one lot of letters go next to another.
'universal' becomes 'u'.
'jewellery' becomes 'ring' (ring is a kind of jewellery).
'all'+'u'+'ring'='ALLURING'
(Other definitions for alluring that I've seen before include "Fascinating, attractive" , "Enticing" , "Powerfully attractive" , "Seductive" .)