Note, foreign money, brass? Could be (8)
I believe the answer is:
memorial
'brass? could be' is the definition.
I can't judge whether this defines the answer.
'note foreign money' is the wordplay.
'note' becomes 'memo' (memo is a kind of note).
'foreign money' becomes 'rial' (currency of Iran).
'memo'+'rial'='MEMORIAL'
Can you help me to learn more?
(Other definitions for memorial that I've seen before include "Record" , "statement of facts" , "Monument to commemorate" , "Monument to past events" , "Serving to commemorate the dead" .)