Perceive, make out (7)
I believe the answer is:
discern
This clue is a double definition.
'perceive' is the first definition.
(I've seen this in another clue)
'make out' is the second definition.
(synonyms)
(Other definitions for discern that I've seen before include "Cinders (anag)" , "Perceive - distinguish" , "Pick out" , "Make out, distinguish by eye" , "Recognise, find out" .)