Magnify
I think it could be either:
'magnify' is the definition.
(I know that magnify can be written as enlarge)
This is the entire clue.
(Other definitions for enlarge that I've seen before include "Increase in size" , "scale up" , "Magnify in general way" , "Dilate" , "Make bigger in general" .)
'magnify' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for augment that I've seen before include "Grow - intensify" , "Make larger" , "boost" , "Increase number of" , "Supplement" .)