Matching number to token role (11)
I believe the answer is:
counterpart
'matching number' is the definition.
'counterpart' can be an answer for 'number' (I have seen 'Opposite number' mean 'counterpart' so perhaps 'number' could also mean 'counterpart'). I am not sure about the 'matching' bit.
'token role' is the wordplay.
'token' becomes 'counter' (counter can mean a token or chip).
'role' becomes 'part' (eg a part or role in a film).
'counter'+'part'='COUNTERPART'
'to' is the link.
Can you help me to learn more?
(Other definitions for counterpart that I've seen before include "Each of two copies of a legal document" , "See opposite number" , "Match" , "Duplicate" .)