Pale, ashen (3)
I believe the answer is:
wan
This clue is a double definition.
'pale' is the first definition.
(wan can mean pale or grey)
'ashen' is the second definition.
(very pale)
(Other definitions for wan that I've seen before include "Pale and looking ill" , "Wheyfaced" , "Pale as from illness" , "Pallid" , "Pale and weak-looking" .)