Mailed (4)
'mailed' is the definition.
('send' can be a synonym of 'mail')
This is the entire clue.
(Other definitions for sent that I've seen before include "Told to go - enthralled" , "Noiseless" , "Dispatched" , "Thrilled" , "Remitted" .)
'mailed' is the definition.
('post' can be a synonym of 'mail')
This is all the clue.
(Another definition for posted that I've seen is " Mailed".)