They may be worn in absentia, rashly (6)
I believe the answer is:
tiaras
'they may be worn' is the definition.
The definition suggests an adverb but the answer is not.
'in absentia rashly' is the wordplay.
'in' indicates a hidden word.
'TIARAS' can be found hidden inside 'absentia rashly'.
Can you help me to learn more?
(Other definitions for tiaras that I've seen before include "Jewelled headdresses" , "Headbands" , "Jewelled crowns for women" .)