American eagle acquiring American identifier (8)
I believe the answer is:
username
'identifier' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'american eagle acquiring american' is the wordplay.
'american' becomes 'US' (abbreviation for United States).
'eagle' becomes 'erne' (erne is a kind of eagle).
'acquiring' indicates putting letters inside.
'american' becomes 'Am' (abbreviation in some contexts).
'erne' placed around 'am' is 'ername'.
'us'+'ername'='USERNAME'
Can you help me to learn more?
(Other definitions for username that I've seen before include "Log in identifier" , "Computer log-in requirement" , "Login ID" , "Something needed for logging in" , "Online identity" .)