Very pale (5)
'very pale' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ashen that I've seen before include "Grey, pallid" , "Like bird" , "Shane (anag.)" , "Drained of colour" , "pale in colour" .)
(Other definitions for whitish that I've seen before include "cream!" , "Nearly snow-coloured" , "Rather pale" , "Pretty snowy" .)