A very good bearer (5)
I believe the answer is:
stoic
'a very good bearer' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for stoic that I've seen before include "One able to endure hardship; philosopher" , "Long-suffering type; follower of Zeno" , "Athenian philosopher" , "Ancient philosopher" , "Unflappable type" .)