Meg returned with Ruby (3)
I believe the answer is:
gem
'ruby' is the definition.
(ruby is an example)
'meg returned' is the wordplay.
'returned' is a reversal indicator.
'meg' backwards is 'GEM'.
'with' is the link.
(Other definitions for gem that I've seen before include "Precious or semi-precious stone" , "36 Across or any other jewel" , "A precious stone like a diamond or emerald etc" , "Valuable stone" , "A jewel or precious stone" .)