French ones have taste (5)
I believe the answer is:
fries
'french ones have taste' is the definition.
I can't judge whether this defines the answer.
'french ones have taste' is the wordplay.
'french' becomes 'fr'.
'ones' becomes 'is' ('I' can be a synonym of 'one').
'have' is an insertion indicator.
'taste' becomes 'e' (I can't explain this - if you can you should give a lot more credence to this answer).
'is' enclosing 'e' is 'ies'.
'fr'+'ies'='FRIES'
Can you help me to learn more?
(Other definitions for fries that I've seen before include "Cooks in fat" , "food for grazing?" , "Cooks; chips (Amer.)" .)