Face reappearing around tree (4)
I believe the answer is:
acer
'tree' is the definition.
(acer is a type of tree)
'face reappearing around' is the wordplay.
'around' says the answer is hidden in the clue.
'ACER' is hidden in the letters of 'face reappearing'.
(Other definitions for acer that I've seen before include "ornamental tree" , "Care about the maple?" , "Tree of maple family" , "Tree or shrub of the maple genus" , "Plant" .)