Father's in car with a great flower (7)
I believe the answer is:
limpopo
'flower' is the definition.
(Limpopo is an example)
'father's in car with a great' is the wordplay.
I cannot quite see how this works, but
'father' could be 'pop' (pop is a kind of father) and 'pop' is present in the answer.
'car' could be 'limo' (limo is a kind of car) and 'limo' is found in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for limpopo that I've seen before include "River of SE Africa" , "African runner" , "River of South Africa" , "African river" , "S. Africa/Zimbabwe border river" .)