Blonde and beautiful (4)
I believe the answer is:
fair
I believe this clue is a double definition.
'blonde' is the first definition.
(similar in meaning)
'beautiful' is the second definition.
(similar in meaning)
'and' acts as a link.
(Other definitions for fair that I've seen before include "Free from bias" , "Unbiased, being light of skin" , "All clues should be" , "Blonde or equitable" , "honest" .)