Father breaks into large car in river (7)
I believe the answer is:
limpopo
'river' is the definition.
(Limpopo is an example)
'father breaks into large car' is the wordplay.
'father' becomes 'pop ' (pop is a kind of father).
'breaks into' means one lot of letters goes inside another (inserted letters break into the word).
'large car' becomes 'limo' (I've seen this before).
'pop' going within 'limo' is 'LIMPOPO'.
'in' acts as a link.
(Other definitions for limpopo that I've seen before include "S. Africa/Zimbabwe border river" , "African runner" , "River of South Africa" , "African river" , "River of SE Africa" .)