*Bejeweled topper (5)
![Ross](/clue/static/ross-mug.min.png)
'bejeweled topper' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tiara that I've seen before include "it goes to one's head!" , "Pope's triple crown" , "Jewelled headwear" , "Jewelled head band" , "Type of diadem" .)
(Other definitions for crown that I've seen before include "Monarch's headgear" , "Coin; royal headgear" , "Old coin; whack on head" , "repair for damaged tooth" , "The sovereign" .)