Tweets provide exciting exchanges, perhaps shocking leaders (5)
I believe the answer is:
peeps
'tweets' is the definition.
(both can mean bird noises)
'provide exciting exchanges perhaps shocking leaders' is the wordplay.
'leaders' suggests taking the first letters.
The initial letters of 'provide exciting exchanges perhaps shocking' is 'PEEPS'.
(Other definitions for peeps that I've seen before include "Sly looks" , "Looks secretely" .)