The philosopher and the man come together (5)
I believe the answer is:
hegel
'the philosopher' is the definition.
(I know that Hegel is a philosopher)
'the man come together' is the wordplay.
'the man' becomes 'he' (pronoun for a man).
'come together' becomes 'gel' (gel can mean to go together well).
'he'+'gel'='HEGEL'
'and' acts as a link.
(Other definitions for hegel that I've seen before include "Georg Wilhelm ---, Ger. philosopher" , "German 'dialectic' philosopher" , "German philosopher, d. 1831" .)