Foreign money or Spanish gentleman (5)
I believe the answer is:
senor
'spanish gentleman' is the definition.
(I've seen this before)
'foreign money or' is the wordplay.
'foreign money' becomes 'sen' (I've seen this before. I am not sure about the 'foreign' bit.).
'sen'+'or'='SENOR'
Can you help me to learn more?
(Other definitions for senor that I've seen before include "European title" , "Spanish form of address" , "A Spanish mister" , "Snore like Spanish gent" , "address on the Costa del Sol" .)