Man almost incorporated one artist (2,5)
I believe the answer is:
da vinci
'artist' is the definition.
(I've seen this before)
'man almost incorporated one' is the wordplay.
'man almost' becomes 'dav' (I am not sure about the 'almost' bit.).
'incorporated' becomes 'inc'.
'one' becomes 'i' (Roman numeral).
'dav'+'inc'+'i'='DA VINCI'
Can you help me to learn more?
(Other definitions for da vinci that I've seen before include "artist, scientist, and engineer" , "See 13 Down" , "Leonardo . . . painted the" , "'Versatile genius of the Italian Renaissance (2,5)'" , "Italian inventor artist" .)