Shortly to be nameless (4)
I believe the answer is:
anon
This clue is a double definition.
'shortly' is the first definition.
(I've seen this before)
'nameless' is the second definition.
(anonymous)
'to be' is the link.
(Other definitions for anon that I've seen before include "soon to be written" , "Presently - unattributed" , "devoid of credit" , "Soon, shortly (archaic)" , "In a little while (informal)" .)