In France, I will take starters of raw kidney – idiot! (4)
I believe the answer is:
jerk
'idiot' is the definition.
(I've seen this in another clue)
'in france i will take starters of raw kidney' is the wordplay.
'in france i' becomes 'je' ('I' in French).
'will take' means one lot of letters go next to another.
'starters of' says to take the initial letters.
The first letters of 'raw kidney' is 'rk'.
'je'+'rk'='JERK'
(Other definitions for jerk that I've seen before include "Stupid person" , "Pull suddenly - twerp!" , "Sharp tug" , "Jolt; tug" , "Yank; preserve (beef)" .)