I think I must be getting tired. Going round in circles.
35A Like country gentry truly disheartened about invasive plant(6) -W-E--
31D Probe filthy accommodation taken by tenant(6) S---E-
54A Stir up river, one of several in England(5 R-U--
51D Discharge governor overwhelmed by drink(5) R---M
Please put me out of my misery!