Covering for head and face (4)
I believe the answer is:
veil
'covering for head and face' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for veil that I've seen before include "Yashmak, for instance" , "Lacy facial covering" , "Concealing material" , "Bridal face covering" , "Face-covering for brides and other women" .)