Pale as a blonde? (4)
I believe the answer is:
ashy
'pale' is the definition.
(I've seen this before)
'a blonde?' is the wordplay.
'blonde?' becomes 'shy' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a'+'shy'='ASHY'
'as' is the link.
Can you help me to learn more?
(Other definitions for ashy that I've seen before include "Cinders must have been this" , "Grey-coloured" , "Like burnt wood or coal" , "like Cinders" , "Like, eg, volcanic dust" .)