Shouted out (6)
I believe the answer is:
yelled
'shouted out' is the definition.
('yell' can be a synonym of 'shout out')
This is all the clue.
(Other definitions for yelled that I've seen before include "Cried out, hollered" , "Shouted loudly as if to be heard" , "Uttered a sharp loud cry" , "Called" , "Uttered a sudden loud cry" .)