Smiled from ear to ear (6)
I believe the answer is:
beamed
'smiled from ear to ear' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for beamed that I've seen before include "Smiled broadly like sun ray" , "Shone brightly or smiled widely" , "Smiled widely - having support" , "Smiled broadly and warmly" , "Smiled broadly - positively shone" .)