28 across
Quibbler
holds
new
medallion
(7)
Quibbler holds new medallion (7)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Medallion's the definition here, a hanging ornament. Take PEDANT (your quibbler), and slot N (short for "new") in after the PE, so PE, then N, then DANT — giving you the answer.