White-faced (5)
I believe the answer is:
ashen
'white-faced' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ashen that I've seen before include "Pale (with shock/illness)" , "Looking pale from illness" , "Pale of face, quite grey" , "lacking in colour" , "Anaemic looking" .)