German agreement to import a vehicle and flowering plant (9)
I believe the answer is:
jacaranda
'plant' is the definition.
The answer is an example.
'german agreement to import a vehicle and flowering' is the wordplay.
'german agreement' becomes 'ja' ('yes' in German).
'to import' means one lot of letters goes inside another.
'vehicle' becomes 'car' (car is a kind of vehicle).
'flowering' indicates an anagram (letters develop or 'flower' into another form).
'a'+'car'='acar'
'ja' placed around 'acar' is 'jacara'.
'and' with letters rearranged gives 'nda'.
'jacara'+'nda'='JACARANDA'
(Other definitions for jacaranda that I've seen before include "Tree common in Pretoria, South Africa" , "Tropical American tree" , "exotic wood" , "Tropical flowering tree" , "Tropical tree with fern-like leaves" .)