Is aware of (6)
(Other definitions for senses that I've seen before include "Faculties for apprehending the external world" , "Feels intuitively" , "Feelings" , "The body has five of them" , "Feels, perceives" .)
'is aware of' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for knows that I've seen before include "Recognises" , "Is aware of" , "Understands" .)