Chirp (7)
'chirp' is the definition.
(I know that tweet is a type of chirp)
This is all the clue.
(Other definitions for tweet that I've seen before include "Short online message" , "(Make a) chirping noise" , "Short message posted on a social network" , "delivered by a chirpy type?" , "Note of a small bird" .)
'chirp' is the definition.
(I know that chirp can be written as cheep)
This is the entire clue.
(Other definitions for cheep that I've seen before include "Young bird's cry" , "Cry of new-born chick" , "Make contribution to Twitter" , "High-pitched sound" , "Sing like a bird" .)
'chirp' is the definition.
(I know that twitter is a more specific form of chirp)
This is all the clue.
(Other definitions for twitter that I've seen before include "There's birdsong" , "Chirping (could be electronic!)" , "Talk excitedly" , "Chirrup tremulously" , "Make bird noises" .)