Short message made even shorter - that's so cute (4)
I believe the answer is:
twee
'cute' is the definition.
(twee can mean cute or pretty)
'short message' is the wordplay.
'short' means to remove the last letter.
'message' becomes 'tweet' (type of online message).
'tweet' with its final letter taken off is 'TWEE'.
'made even shorter that's so' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for twee that I've seen before include "Mawkish" , "Excessively cute" , "Small and sweet (colloq.)" , "Sickly sweet" , "Affectedly dainty or quaint" .)