Notices skin blemishes (5)
I believe the answer is:
spots
This clue could be a double definition.
'notices skin' is the first definition.
'spots' can be an answer for 'notices' (spot can mean to notice or see). I'm not sure about the 'skin' bit.
'blemishes' is the second definition.
(I know this)
Can you help me to learn more?
(Other definitions for spots that I've seen before include "Picks out" , "Sees" , "Result of outbreak, possibly" , "Acne" , "Espies the blobs?" .)