Cold German gentleman with yen for fruit (6)
I believe the answer is:
cherry
'for fruit' is the definition.
(cherry is a kind of fruit)
'cold german gentleman with yen' is the wordplay.
'cold' becomes 'C' (eg on taps).
'german gentleman' becomes 'herr' (German equivalent to 'Mr').
'with' is a charade indicator (letters next to each other).
'yen' becomes 'y' (resembles the symbol for the currency of Japan).
'c'+'herr'+'y'='CHERRY'
(Other definitions for cherry that I've seen before include "What fruiterer may have" , "Tree; red fruit" , "The colour of a red fruit" , "Red fruit with a single hard stone" , "Deep red like small stone fruit" .)