Go along with firm parliamentarian - lobby must be eviscerated (6)
I believe the answer is:
comply
'go along' is the definition.
(I've seen this in another clue)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for comply that I've seen before include "Yield to another's wishes or rules" , "Do as one is asked or ordered" , "Agree with another's wishes" , "Extra runs; farewells" , "Meet specified standards" .)