White, like a layer of eggs (5)
I believe the answer is:
ashen
'white' is the definition.
(I know that white can be written as ashen)
'like a layer of eggs' is the wordplay.
'like' becomes 'as'.
'a layer of eggs' becomes 'hen' (I've seen this in another clue).
'as'+'hen'='ASHEN'
(Other definitions for ashen that I've seen before include "lacking in colour" , "(Of face) pale with fear" , "White-faced" , "Grey, pallid" , "Like bird" .)