Soon to be nameless (4)
I believe the answer is:
anon
I believe this clue is a double definition.
'soon' is the first definition.
(synonyms)
'nameless' is the second definition.
(anonymous)
'to be' is the link.
(Other definitions for anon that I've seen before include "devoid of credit" , "before long" , "Of unknown authorship" , "Soon - nobody knows me" , "Of unknown identity, in short" .)