Of tribal significance, it can carry a lot (5)
I believe the answer is:
totem
'of tribal significance it' is the definition.
I can't judge whether this defines the answer.
'carry a lot' is the wordplay.
'carry' becomes 'tote' (toting is a kind of carrying).
'a lot' becomes 'm' ().
'tote'+'m'='TOTEM'
'can' acts as a link.
Can you help me to learn more?
(Other definitions for totem that I've seen before include "Emblem of a clan" , "Symbolic pole" , "Emblem of kinship among native Americans" , "Revered symbol" , "Symbol given (undue) respect" .)