Wooden-faced beauty (6)
I believe the answer is:
veneer
'beauty' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for veneer that I've seen before include "Superficial coating" , "Specious outward appearance of good quality" , "Thin skin on surface" , "False front" , "Misleading external appearance" .)