See Haley's wavy facial hair (9)
I believe the answer is:
eyelashes
'facial hair' is the definition.
(hair on one's face)
'see haley's wavy' is the wordplay.
'wavy' indicates an anagram (letters wave around).
'see'+'haleys'='seehaleys'
'seehaleys' with letters rearranged gives 'EYELASHES'.
(Other definitions for eyelashes that I've seen before include "Facial features" , "ocular features" , "Facial hairs" , "They can flutter" , "they're on the lids" .)