American English, on information returned, has grade getting better (12)

'grade getting better' is the definition.
Both the answer and definition are adjectives. Perhaps there's a link between them I don't understand?

'american english on information returned' is the wordplay.
I cannot quite understand how this works, but
'american' could be 'am' (abbreviation in some contexts) and 'am' is located in the answer.
'english' could be 'e' (abbreviation) and 'e' is found in the answer.
'on' could be 'at' (I've seen this in other clues) and 'at' is found within the answer.
'information' could be 'i' (common abbreviation for information) and 'i' is found in the answer.
The remaining letters 'loring' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'has' is the link.

Can you help me to learn more?