Notices blemishes (5)
I believe the answer is:
spots
I believe this clue is a double definition.
'notices' is the first definition.
(I've seen this in another clue)
'blemishes' is the second definition.
(I know this)
(Other definitions for spots that I've seen before include "Picks out" , "Sees" , "Catches sight of" , "Result of outbreak, possibly" , "Blemishes" .)