Boasting when leading Conservative is ousted and getting into an argument (6)
I believe the answer is:
'getting into an argument' is the definition.
(to row is to argue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for rowing that I've seen before include "Aquatic sport" , "Sport associated with Henley" , "in dispute" , "Olympic sport; arguing" , "Sculling sport?" .)