Radiated joy (6)
I believe the answer is:
beamed
'radiated joy' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for beamed that I've seen before include "Smiled broadly like sun ray" , "Smiled brightly like sun ray" , "Smiled broadly like sun's ray" , "Shone brightly or smiled widely" , "Smiled broadly and warmly" .)