Not really a company man? (6)
I believe the answer is:
hermit
'man?' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for hermit that I've seen before include "Solitary type" , "Solitary religious" , "One lives an isolated religious life" , "Liver in solitude" , "Recluse, one who lives in solitude" .)