Foreshadow (9)
There are a few possibilities for this:
adumbrate
'foreshadow' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for adumbrate that I've seen before include "Foreshadow, be a sign of" , "Depict in outline" , "sketch" , "Give a faint idea of; overshadow" , "Show faintly, in outline" .)
'foreshadow' is the definition.
(I know that foreshadow can be written as portend)
This is the entire clue.
(Other definitions for portend that I've seen before include "Betoken; presage" , "Signal" , "Be a sign of something to come" , "Foreshadow" , "Give warning" .)
'foreshadow' is the definition.
(I know that foreshadow can be written as presage)
This is the entire clue.
(Other definitions for presage that I've seen before include "Portent" , "Foretell" , "Forecast, foreshadow" , "Be a sign or warning of (an event)" , "Be a sign of (something)" .)