Diamonds left with that girl from Bow for a European (9)
I believe the answer is:
icelander
'for a european' is the definition.
(Icelander is an example)
'diamonds left with that girl from bow' is the wordplay.
'diamonds' becomes 'ice' (slang term for diamonds).
'left' becomes 'l' (common abbreviation).
'with' becomes 'and'.
'that girl from bow' becomes 'er' (I can't explain this - if you can you should believe this answer much more).
'ice'+'l'+'and'+'er'='ICELANDER'
Can you help me to learn more?
(Other definitions for icelander that I've seen before include "Reykjavik native?" , "someone from Reykjavik, probably" , "Foreigner" , "Nationality of citizen of Reykjavik" , "Kind of European" .)