Diplomat’s accusation over plants choking river (6,9)
I believe the answer is:
charge daffaires
'diplomat's' is the definition.
(charge d'affaires is a kind of diplomat)
'accusation over plants choking river' is the wordplay.
I cannot really understand how this works, but
'accusation' could be 'charge' (I've seen this in another clue) and 'charge' is located in the answer.
'over' could be 're' and 're' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for charge daffaires that I've seen before include "ambassador's deputy" , "Diplomat" .)