Topple over the first two seats in the theatre? (9)
I believe the answer is:
overthrow
'topple over' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for overthrow that I've seen before include "Error on cricket field - defeat" , "Trevor who? (anag)" , "Unseat" , "chance of another run" , "Fall" .)