Men seem to show such content, being philosophical (3)
I believe the answer is:
ens
'content being philosophical' is the definition.
I can't judge whether this defines the answer.
'men seem to show' is the wordplay.
'to show' indicates the answer is hidden within the clue.
'ENS' is hidden within 'men seem'.
'such' acts as a link.
Can you help me to learn more?
(Other definitions for ens that I've seen before include "Entity" , "Printing measures" .)