Still a short goodbye, tragically (3)
I believe the answer is:
yet
'still' is the definition.
(yet can mean still or so far)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for yet that I've seen before include "Though; still" , "Still, even" , "Still; nevertheless" , "Still, so far" , "Up till now" .)