Become aware of make (7)
I believe the answer is:
realise
This clue is a double definition.
'become aware' is the first definition.
(I've seen this before)
'make' is the second definition.
(I've seen this before)
'of' is the link.
(Other definitions for realise that I've seen before include "Ears lie (anag.)" , "Become aware of; fulfil (S, not Z)" , "Turn into cash; come to see" , "Get the idea?" , "Discover" .)