Patron to cite computer identifier, perhaps (8)
I believe the answer is:
username
'computer identifier perhaps' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'patron to cite' is the wordplay.
'patron' becomes 'user' (I've seen this before).
'to cite' becomes 'name' (synonyms).
'user'+'name'='USERNAME'
Can you help me to learn more?
(Other definitions for username that I've seen before include "Electronic identity" , "Computer log-in requirement" , "Something needed for logging in" , "Log in identifier" , "Login ID" .)