Item of clothing that's disguised hard faces (9)
I believe the answer is:
headscarf
'item of clothing' is the definition.
(headscarf is a type of item of clothing)
'disguised hard faces' is the wordplay.
'disguised' indicates anagramming the letters.
'hard'+'faces'='hardfaces'
'hardfaces' anagrammed gives 'HEADSCARF'.
'that's' acts as a link.
(Other definitions for headscarf that I've seen before include "Ladies' garment" , "top dressing put on by woman" , "This may afford some protection" , "adornment for loaf" .)