Economist making important points (6)
I believe the answer is:
keynes
'economist' is the definition.
(Keynes is an example)
'important points' is the wordplay.
'important' becomes 'key' ('key' can be similar in meaning to 'important').
'points' becomes 'nes' (NE is an example).
'key'+'nes'='KEYNES'
'making' is the link.
(Other definitions for keynes that I've seen before include "Milton -, new town" , "John Maynard --, English economist" , "SECOND PART OF 15" , "20th century economist" , "English economist, d. 1946" .)